Fiscal Impact of Non-Competitive Procurement. Analyzing the Combined Multi-Million Dollar Cost to Chicago and NYC Taxpayers
The Premium of Exclusivity: 2024 Contract Renewals
In 2024, the fiscal relationship between SoundThinking (formerly ShotSpotter) and its two largest municipal clients, Chicago and New York City, exposed the severe financial penalties of non-competitive procurement. even with mounting empirical evidence questioning the system’s efficacy, both cities engaged in sole-source contract maneuvers that allowed the vendor to dictate pricing terms. The result was a combined taxpayer load exceeding $100 million over the life of these agreements, with 2024 serving as a flashpoint for inflated extension fees and bypassed oversight method.
The absence of competitive bidding created a seller’s market for SoundThinking. In Chicago, the administration’s decision to extend the contract for a “wind-down” period resulted in a 13% price hike per square mile, a premium levied on a city attempting to exit the agreement. In New York, the Police Department (NYPD) attempted to push through a renewal that escalated costs to nearly $85, 097 per square mile, ignoring a Comptroller audit that flagged millions in waste on unconfirmed alerts. These transactions illustrate a pattern where incumbent vendors utilize sole-source use to immunize themselves against market rates and performance-based fiscal accountability.
Chicago: The $8. 6 Million Exit Tax
The controversy in Chicago centered on the expiration of the city’s $33 million contract, originally signed in 2018. While Mayor Brandon Johnson campaigned on canceling the service, the operational reality of 2024 involved a costly extension negotiated without City Council approval. In February 2024, the administration agreed to pay $8. 6 million to keep the system running through September, with a transition period ending in November.
This extension was not a continuation of previous terms; it was a price gouge. Under the 2024 agreement, Chicago’s rate jumped from approximately $65, 000 per square mile to $73, 500 per square mile. This 13% increase was accepted by the city even with the Office of Inspector General (OIG) previously reporting that fewer than 10% of ShotSpotter alerts resulted in evidence of a gun-related crime. The city paid a premium for a service it had already deemed non-essential, funneling millions from the public safety budget into a short-term stopgap measure.
The fiscal mechanics of this deal were unclear. By structuring the payments as extensions under the mayoral contracting threshold, the administration bypassed the standard legislative review that accompanies major procurement. This allowed SoundThinking to secure guaranteed revenue during a period of high volatility for its stock price, which had dropped significantly following the initial cancellation announcement. For Chicago taxpayers, the “wind-down” cost more than the annual operating budget of violence prevention programs.
New York City: Audit vs. Renewal
While Chicago negotiated its exit, New York City moved to entrench SoundThinking further, disregarding fiscal warnings. In June 2024, City Comptroller Brad Lander released an audit revealing that the NYPD had spent $54. 6 million on ShotSpotter since 2015. The audit’s findings were fiscally damning: in a sample period from June 2023, only 13% of alerts were confirmed as shootings.
even with these metrics, the NYPD pursued a contract renewal valued at approximately $21. 8 million to extend services through 2027. This renewal process was characterized by procedural irregularities typical of sole-source dependency. The proposed agreement attempted to insert a one-year extension option that violated the Procurement Policy Board rules and locked the city into a rate exceeding $85, 000 per square mile, significantly higher than the rate paid by Chicago.
The financial waste in New York extends beyond the contract face value. The Comptroller’s audit quantified the “opportunity cost” of false positives. In June 2023 alone, NYPD officers spent 427 hours investigating alerts that turned out to be unfounded. Extrapolated over the life of the contract, this represents tens of thousands of officer hours, funded by overtime and base salaries, diverted from patrol or proven investigative work to chase phantom gunshots. This hidden operational cost doubles the fiscal impact of the system.
Comparative Unit Costs: Chicago vs. NYC (2024)
The in pricing between the two cities highlights the arbitrary nature of SoundThinking’s pricing model when competitive bidding is absent. New York City pays a premium of over 15% compared to Chicago’s already-inflated 2024 rate.
| Metric | Chicago (2024 Extension) | New York City (2024 Renewal Proposal) |
|---|---|---|
| Contract Status | 9-Month Sole-Source Extension | 3-Year Non-Competitive Renewal |
| Total Transaction Value | $8. 6 Million | ~$21. 8 Million |
| Cost Per Square Mile | $73, 500 | ~$85, 097 |
| Price Increase | +13% vs. Previous Contract | Variable (market dominance premium) |
| Fiscal Oversight | Bypassed City Council | Rejected by Comptroller (Feb 2025) |
The Hidden Costs of False Positives
The direct transfer of funds to SoundThinking represents only one ledger of the total cost. The operational expenditures triggered by the system create a secondary fiscal. In Chicago, the OIG identified that the system created a feedback loop of “dead-end” deployments. When officers respond to the 90% of alerts that produce no evidence, the city incurs costs for fuel, vehicle wear, and crucially, the opportunity cost of those officers not being available for 911 calls.
In New York, the 2024 audit attempted to monetize this waste. With officers spending an average of 32 minutes investigating unconfirmed alerts, the city is subsidizing SoundThinking’s R&D with municipal labor. The vendor’s contract does not penalize it for false alarms; instead, the financial risk is entirely socialized onto the police department’s overtime budget. This structure incentivizes the vendor to increase sensitivity, generating more alerts to demonstrate “value”, while the city pays for the inevitable increase in unfounded dispatch runs.
Cumulative Taxpayer load (2015, 2025)
When aggregating the spend across both cities over the last decade, the of the investment becomes clear. Chicago and New York City have shared transferred over $100 million to SoundThinking. This revenue stream has been serious for the vendor, frequently stabilizing its stock performance during quarterly earnings reports.
“The fact that we are paying more for just nine months as opposed to what we would have paid otherwise for an entire year makes me wonder who’s doing the negotiating for the city of Chicago.” , Alderman Raymond Lopez, regarding the 2024 extension.
This statement encapsulates the fiscal irrationality of the 2024 renewals. In a competitive market, a vendor with a documented efficacy rate 20% would face pressure to lower prices or improve performance. In the sole-source environment engineered by SoundThinking and accepted by municipal leaders, the inverse occurred: performance problem were met with price increases.
The 2024 procurement pattern in both cities demonstrates that without strict adherence to competitive bidding and performance-based termination clauses, municipalities remain to vendor lock-in. The millions spent in 2024 did not purchase improved safety outcomes; they purchased a continuation of the, at a premium.
Chicago OIG Report Metrics. Documenting the High Non-Engagement Rate for ShotSpotter Alerts in Police Districts
Section 2: Chicago OIG Report Metrics
Documenting the High Non-Engagement Rate for ShotSpotter Alerts in Police Districts
The controversy surrounding the 2024 contract renewal in Chicago was not a political dispute a collision between administrative inertia and hard data. The central indictment of the system came from the City of Chicago Office of Inspector General (OIG), which released a foundational audit in August 2021. This report provided the empirical baseline for the “non-engagement” argument: the reality that the vast majority of ShotSpotter alerts send police officers to locations where they find no evidence of a crime, no shooter, and no victim. These metrics were reinforced by a leaked 2024 internal review from the Cook County State’s Attorney’s Office (CCSAO), creating a composite picture of a system with a negligible return on investment.
The following metrics detail the operational disconnect identified by oversight bodies between 2015 and 2025:
1. The 90. 9% “Dead End” Rate
The OIG’s analysis of 50, 176 confirmed ShotSpotter alerts between January 1, 2020, and May 31, 2021, revealed a rate of non-engagement. Of the alerts dispatched to police, 90. 9% resulted in no evidence of a gun-related criminal offense. Police arrived at the geolocated coordinates, canvassed the area, and found no shell casings, no bullet holes, no weapons, and no injured parties. This “dead end” rate meant that for every ten deployments triggered by the vendor’s sensors, nine consumed patrol time and resources without advancing a criminal investigation.
2. The 2. 1% Investigatory Stop Yield
Proponents of the system frequently that alerts generate necessary police stops even if physical evidence is not immediately recovered. The OIG data contradicted this claim. Only 2. 1% of all ShotSpotter alerts resulted in a documented investigatory stop (ISR). This low yield suggests that the technology rarely provides officers with the actionable intelligence needed to legally detain suspects. The data indicates that the sensors drive patrol volume rather than targeted enforcement, flooding districts with noise rather than leads.
3. The $217, 368 Arrest Premium
In February 2024, as the contract renewal debate peaked, the Cook County State’s Attorney’s Office (CCSAO) produced an internal analysis that monetized the system’s. The report calculated that the cost to taxpayers for every arrest explicitly tied to a ShotSpotter alert was approximately $217, 368. This figure was derived from the high annual contract costs divided by the minuscule number of arrests, less than 1% of all shooting incidents, that could be directly attributed to the technology.
4. Saturation in the 4th and 5th Districts
The OIG report highlighted that the load of these false positives was not evenly distributed. Nearly 25% of all alerts during the audit period were concentrated in just two police districts: the 4th (South Chicago) and the 5th (Calumet). This geographic saturation meant that residents in these specific South Side neighborhoods were disproportionately subjected to “phantom” police deployments. Officers in these districts were conditioned to respond to thousands of alerts that yielded no results, a that the OIG warned could lead to “alert fatigue” and a degradation of community trust.
5. The “Ghost” Victim Metric
During the 2024 renewal hearings, the Chicago Police Department (CPD) attempted to counter the OIG’s findings by releasing data claiming the system saved lives by speeding up medical response. CPD 143 instances where aid was rendered following an alert. Closer scrutiny of the data revealed that in 136 of those 143 cases, a 911 call had also been placed. The system provided a sole-source advantage, alerting police to a victim who would otherwise have gone unreported, in only 7 cases out of nearly 30, 000 alerts in the 2024 sample period.
6. The 40, 000 Fruitless Deployments
Corroborating the OIG’s findings, the MacArthur Justice Center analyzed a broader dataset extending into the renewal period, documenting over 40, 000 police deployments triggered by ShotSpotter that resulted in no reportable incident. This mass mobilization of force based on unverified audio signals represents a significant opportunity cost. Patrol hours spent chasing false positives are hours not spent on community policing, verified 911 calls, or detective work on solving actual homicides.
| Metric Category | Statistic | Source |
|---|---|---|
| Alerts with No Gun Crime Evidence | 90. 9% | Chicago OIG (2021) |
| Alerts Leading to Investigatory Stop | 2. 1% | Chicago OIG (2021) |
| Shooting Incidents Ending in Arrest | 1. 0% | Cook County SAO (2024) |
| Missed Shootings (False Negatives) | 20. 0% | Type Investigations (2024) |
| Sole-Source Victim Aid (No 911) | 0. 02% (7 of 29, 829) | CPD / City Council Data (2024) |
“The CPD data examined by OIG does not support a conclusion that ShotSpotter is an tool in developing evidence of gun-related crime.”
, Chicago Office of Inspector General, August 2021 Report
NYC Comptroller Audit Findings. Investigating the Failure Rate in Confirming Gunfire Events Across Five Boroughs
The 13 Percent Reality: Comptroller Lander’s 2024 Audit
In June 2024, the New York City Comptroller’s Office released a performance audit that dismantled the operational justification for the NYPD’s continued reliance on SoundThinking’s technology. While the financial terms of the contract renewal raised fiscal alarms, the operational data presented by Comptroller Brad Lander exposed a system with a failure rate so high it functioned as a random noise generator for patrol officers. The audit, which examined data from 2022 and 2023, established that ShotSpotter alerts resulted in confirmed shootings only 13% of the time. This metric stands as the definitive counter-argument to the NYPD’s claims of “precision policing.” For every 100 alerts sent to officers’ smartphones, 87 sent them chasing ghosts, car backfires, construction noise, fireworks, or simply nothing at all. The Comptroller’s investigation focused on the operational drain this inaccuracy places on municipal resources. The audit revealed that the system’s “false positive” problem is not a technical glitch a dominant feature of its deployment in New York’s complex acoustic environment. The audit’s findings were not abstract estimates. Auditors conducted a granular analysis of specific timeframes to quantify the waste. For the month of June 2023 alone, the data painted a clear picture of.
Table: ShotSpotter Alert Disposition (June 2023 Sample)
| Disposition Category | Number of Alerts | Percentage of Total | Operational Outcome |
|---|---|---|---|
| Unconfirmed | 771 | 82% | Officers arrived, found no evidence of gunfire (no casings, victims, or witnesses). |
| Unfounded | 47 | 5% | Officers determined the sound was definitely not gunfire (e. g., fireworks, construction). |
| Confirmed Shooting | 122 | 13% | Evidence of gunfire found (casings, property damage, victim). |
| Total Alerts | 940 | 100% | 87% Failure Rate |
The distinction between “Unconfirmed” and “Unfounded” is procedural functionally identical for the taxpayer: both represent a deployment of armed officers to a location where no crime is being committed. The 82% “Unconfirmed” rate suggests that in the vast majority of cases, officers arrive at a scene, canvas the area, and leave empty-handed. This massive volume of phantom calls dilutes the urgency of valid alerts, creating a “boy who cried wolf” among patrol units.
The Man-Hour Tax: 426 Hours of Waste in One Month
The most damning metric in the Comptroller’s report was not the percentage of errors, the tangible cost of those errors in police time. The audit calculated that in June 2023 alone, NYPD officers spent 426. 9 hours investigating ShotSpotter alerts that turned out to be false alarms. This figure represents the direct “time tax” paid by the city for the privilege of using the software. When extrapolated across the full year and all five boroughs, the data suggests thousands of patrol hours are diverted from community presence or verified crime investigations to respond to SoundThinking’s algorithmic errors. The audit noted that the NYPD does not systematically track the time lost to these false positives, a failure of oversight that obscures the true operational cost of the contract. The auditors had to manually reconstruct these figures, revealing a hidden that the police department had no internal method, or desire, to measure. This resource drain is particularly acute because ShotSpotter alerts are frequently treated as “Priority 1” calls, requiring immediate dispatch and frequently a multi-car response. A false alarm does not just waste the time of two officers; it frequently occupies multiple units, supervisors, and evidence collection teams who must scour a scene to “prove a negative” before clearing the job.
Manhattan: The Urban Canyon Failure
The audit also exposed a geographic in the system’s reliability. While SoundThinking markets its sensors as in all environments, the Comptroller’s findings indicated that the high-density “urban canyons” of Manhattan render the technology significantly less reliable. The audit found that ShotSpotter failed to meet its contractual performance target, detecting 90% of probable gunfire, in Manhattan for 30 out of 41 months reviewed. This failure rate in Manhattan is attributed to the acoustic complexity of the borough. The density of skyscrapers, the prevalence of construction noise, and the echoing effects of narrow streets create a soundscape that defeats the triangulation algorithms used by the sensors. even with this consistent underperformance, the city continued to pay the full premium for coverage in these zones. The contract absence provisions to penalize the vendor for localized failures, meaning the city paid the same rate for a system that worked 60% of the time in Harlem as it did for one that might work marginally better in lower-density areas of Queens.
The “90% Guarantee” Loophole
A central element of the controversy highlighted by the audit is the structure of the “performance guarantee” in the contract. SoundThinking guarantees that it detect 90% of outdoor gunfire. On the surface, this appears to be a strong standard. Yet, the Comptroller’s analysis revealed that this metric creates a perverse incentive. To ensure they do not “miss” a gunshot (a false negative), the system is tuned to be hyper-sensitive. It classifies a wide array of loud, impulsive sounds as chance gunfire to ensure the 90% detection threshold is met. The contract contains no penalty for false positives. Consequently, the vendor is financially incentivized to flood the NYPD with alerts, even if 87% of them are false, because the only metric that triggers a refund or penalty is a missed shot.
“ShotSpotter’s contract gives them no incentive to correct the massive number of ‘false positives’ that sends cops out to car backfires and other loud noises nearly 87 percent of the time. Instead of trying to grab an extra year’s extension, ShotSpotter should have implemented the recommendations in our audit to improve their performance.”
, NYC Comptroller Brad Lander, February 2025 Statement on Contract Rejection
This contractual flaw renders the system’s “accuracy” claims statistically meaningless. A system that alerts on every loud noise technically capture 100% of gunshots, it also capture 100% of car backfires, jackhammers, and fireworks. The audit argued that without a metric penalizing false alarms, the city is paying for a noise-logging service rather than a precision crime-fighting tool.
The Response Time Fallacy
The NYPD frequently defends the sole-source renewal by claiming that ShotSpotter gets officers to scenes faster than 911 calls. The Comptroller’s audit challenged this assertion with data. While the digital alert is indeed transmitted faster than a phone call can be processed, the “response time” advantage is negated by the low quality of the information. The audit found that the NYPD “substantially overstates” the reduction in response times. also, because 87% of the alerts are false, the “speed” of the response is frequently irrelevant. Rushing officers to a non-existent crime scene does not improve public safety; it increases the risk of vehicular accidents during the response and heightens tensions in the community when police arrive aggressively at a location where residents are simply going about their day. The audit compared ShotSpotter alerts to 911 calls for confirmed shootings and found that while the technology offered a theoretical speed advantage, the operational reality was different. In confirmed shooting cases, 911 calls provided context, descriptions of suspects, direction of flight, number of shooters, that the acoustic sensors could not. The “blind” speed of a ShotSpotter dispatch frequently left officers arriving quickly with zero situational awareness, a tactical deficit that the audit flagged as a safety concern.
Administrative Defiance: The Renewal even with Data
The culmination of these findings was Comptroller Lander’s rare administrative move to decline the registration of the contract renewal. In New York City’s governance structure, the Comptroller registers contracts to ensure funds are available and procurement rules are followed. Lander’s refusal was a direct indictment of the administration’s decision to bypass competitive bidding for a system with such demonstrable performance failures. The audit served as the evidentiary foundation for this refusal. Lander argued that renewing a contract with an 87% failure rate, without the performance evaluation recommended by his office, violated the principles of fiscal responsibility. The administration’s decision to proceed with the renewal—forcing the contract through even with the Comptroller’s objections—demonstrated a prioritization of vendor continuity over data-driven governance. The 2024 renewal thus proceeded not because the system worked, because the political commitment to the technology outweighed the empirical evidence of its failure.
The Sole-Source Justification. Examining NYPD Legal Loopholes Used to Bypass Competitive Bidding in 2024
The Mechanics of PPB Rule 3-05
Under New York City procurement law, a Sole Source procurement is permissible only when “there is only one source for the required goods, service, or construction.” The NYPD’s justification for invoking this rule in 2024 rested on two pillars: proprietary technology and infrastructure lock-in. SoundThinking owns the patents on the acoustic algorithms and, crucially, owns the physical network of 2, 000+ sensors installed across the five boroughs. The NYPD argued that switching vendors would require the of this existing network and the installation of a new one, creating a prohibitive financial and operational load. This “switching cost” became the primary legal defense for avoiding a Request for Proposals (RFP). By framing the requirement not as “gunshot detection” as “continuation of the specific ShotSpotter network,” the police department legally excluded chance competitors like Flock Safety or others entering the acoustic detection market.
The Comptroller’s Challenge: Efficacy vs. Exclusivity
In June 2024, NYC Comptroller Brad Lander released an audit that directly challenged the premise of the sole-source justification. The audit found that ShotSpotter alerts resulted in confirmed shootings only 13% of the time. Under normal procurement standards, such low efficacy would disqualify a vendor from being considered “essential” or “unique” in a way that justifies bypassing competition. Lander’s office argued that if the technology does not work as advertised, the “need” required for a sole-source contract does not exist. The Comptroller’s Bureau of Contract Administration flagged the renewal, stating that the NYPD failed to demonstrate the system’s value relative to its cost. yet, the PPB rules prioritize the availability of the source over the quality of the output in the initial determination. Because SoundThinking is the sole provider of SoundThinking services, the legal definition was satisfied, even if the operational value was disputed.
The Infrastructure Lock-In Trap
The 2024 renewal process exposed a circular loophole in municipal tech contracts. The city pays for the installation of sensors, the vendor retains ownership and control of the network. This structure ensures that the longer the contract lasts, the harder it becomes to leave.
| PPB Rule 3-05 Requirement | NYPD/SoundThinking Justification | Comptroller’s 2024 Counter-Finding |
|---|---|---|
| Single Available Source | SoundThinking holds exclusive patents on the specific triangulation algorithms and sensor hardware used by the NYPD. | Alternative technologies exist; the “exclusivity” is artificial because the NYPD defined the need based on the incumbent’s specific specs. |
| Prohibitive Switching Costs | Removing 2, 000+ proprietary sensors and installing a new system would incur millions in transition costs and service gaps. | The “sunk cost” fallacy drives the renewal. The cost of false positives (officer deployment time) exceeds the cost of switching. |
| Public Interest/Safety | The system is a serious tool for rapid response to gun violence and officer safety. | With an 87% false positive rate, the system wastes police resources rather than enhancing safety, negating the public interest argument. |
The Charter Override: Section 328
When the Comptroller rejects a contract registration, as Lander threatened to do following the June 2024 audit, the Mayor holds the trump card: Section 328 of the New York City Charter. This provision allows the Mayor to require the Comptroller to register a contract even over valid objections, provided the Mayor certifies that the contract is for a “valid public purpose.” In late 2024, the Adams administration prepared to use this override to force the SoundThinking renewal through. This method renders the Comptroller’s oversight advisory rather than binding in cases where the administration is to expend political capital. By classifying the ShotSpotter contract as a matter of urgent public safety, the NYPD and the Mayor’s office insulated the procurement from the fiscal scrutiny that accompanies a $54 million historical spend. The “Sole Source” designation, combined with the threat of Charter Override, created a closed loop where performance metrics became irrelevant to the contract’s survival.
Financial of Non-Competitive Renewal
The absence of competitive bidding in 2024 meant the NYPD had no use to negotiate lower pricing or stricter performance guarantees. In competitive procurements, the city can demand “pay-for-performance” clauses, for example, penalizing the vendor for false positives that exceed a certain threshold. Because SoundThinking was treated as a sole source, the 2024 renewal terms remained largely favorable to the vendor. The cost per square mile continued to rise, and the contract absence meaningful financial penalties for the 87% rate of unfounded alerts in the Comptroller’s audit. The city agreed to pay a premium for a monopoly it helped create, with the legal of the PPB rules serving to protect the vendor from market forces.
Comparison with Chicago’s “Wind-Down”
While New York used legal gaps to cement the partnership, Chicago took the opposite legal route in 2024. Mayor Brandon Johnson’s administration determined that the sole-source justification was no longer valid given the system’s performance. Chicago initiated a “wind-down” extension—a short-term contract designed specifically to exit the relationship rather than renew it. This contrast highlights that the “Sole Source” justification is a policy choice, not a legal inevitability. New York’s decision to accept the “proprietary” argument allowed the NYPD to bypass the competitive market, while Chicago’s rejection of that same argument forced a (temporary) separation. The NYPD’s reliance on Section 3-05 in 2024 demonstrated that in New York City, the definition of “essential” is determined by the agency seeking the contract, not the data measuring its success.
Political Deadlock in Chicago. The Power Struggle Between Mayor Johnson and City Council Over Contract Extension
The February Ultimatum and the DNC Compromise
On February 13, 2024, Mayor Johnson announced that the city would not renew its contract with SoundThinking, set to expire just three days later on February 16. The decision fulfilled a core tenant of his mayoral campaign, during which he argued the technology was ineffective and led to the over-policing of Black and Brown communities. yet, the operational reality of the upcoming Democratic National Convention (DNC) forced an immediate, expensive pivot. To avoid a coverage gap during the high-profile political event, the Johnson administration negotiated a short-term extension through September 22, 2024, followed by a two-month “wind-down” period. This extension came at a significant premium. The city agreed to pay approximately $8. 6 million for roughly nine months of service, a rate that critics and Aldermen noted was proportionally higher than the previous annual cost of roughly $10 million.
The Geographic and Racial Divide
The Mayor’s decision triggered an immediate revolt within the City Council, characterized by a clear geographic and racial inversion of traditional progressive politics. On May 22, 2024, the City Council voted 34-14 to pass an order requiring the Mayor to provide data before removing the sensors and demanding the system’s retention. The vote tally revealed a specific grievance: Aldermen representing the South and West sides, where gun violence is most concentrated, voted overwhelmingly to keep the system. Conversely, the opposition to SoundThinking was led largely by progressive Aldermen from the North Side, wards that experience little to no gun violence and do not utilize the technology. Alderman David Moore (17th Ward), a vocal proponent of the system, argued that removing the sensors would leave residents in high-crime areas, stating that his constituents demanded the technology. This created an optics emergency for Mayor Johnson, who found himself removing a public safety tool over the objection of the very communities he claimed to protect from “over-policing.”
The September Constitutional emergency
As the September 22 decommissioning deadline method, the conflict escalated into a legal standoff regarding the separation of powers. On September 18, 2024, the City Council voted 33-14 to pass an ordinance that attempted to strip the Mayor of his procurement authority regarding gunshot detection. The legislation sought to transfer the power to sign a contract directly to Police Superintendent Larry Snelling. Superintendent Snelling’s position further the Mayor. Unlike Johnson, Snelling publicly supported the technology, acknowledging that while it was not a “magic wand,” it was a necessary tool for rapid response and evidence collection. The Council’s ordinance attempted to use Snelling’s support to bypass the Mayor entirely. Mayor Johnson refused to acknowledge the ordinance’s validity. Relying on the advice of Corporation Counsel Mary Richardson-Lowry, the administration argued that the City Council (legislative branch) absence the legal authority to compel the Mayor (executive branch) to enter into a specific contract. Johnson did not even problem a formal veto, instead deeming the ordinance unenforceable and null.
Lobbying and the “Ward-Based” Strategy
Investigative reporting during this period revealed active coordination between SoundThinking lobbyists and City Council members. Emails obtained by local outlets showed that Alderman Moore and others worked with company representatives to draft legislation that would allow for a “ward-by-ward” deployment, letting individual districts opt-in to the service. SoundThinking also attempted a last-minute price reduction, offering to slash its fees by nearly 48% in a bid to secure a contract renewal before the September cutoff. Critics, including Alderman Andre Vasquez (40th Ward), seized on this sudden discount as evidence that the company had been price-gouging the city for years. The administration rejected the offer, maintaining that the decision was based on efficacy and values, not just cost.
Timeline of the 2024 Standoff
The following table details the escalation of the conflict between the Mayor and the City Council.
| Date | Event | Key Action | Outcome |
|---|---|---|---|
| Feb 13, 2024 | Cancellation Announcement | Mayor Johnson announces intent to end ShotSpotter contract. | Contract extended to Sept 22 for DNC coverage at ~$8. 6M. |
| May 22, 2024 | Council Revolt | City Council votes 34-14 on order to keep system. | Mayor ignores the non-binding order; geographic divide exposed. |
| Sept 18, 2024 | Legislative Bypass Attempt | Council votes 33-14 to give Superintendent procurement power. | Mayor deems ordinance illegal/unenforceable under Separation of Powers. |
| Sept 22, 2024 | Decommissioning | Contract expires at midnight. | Sensors go dark; SoundThinking begins removing equipment. |
| Oct 2024 | Failed Revival | Aldermen attempt new ordinance to force renewal. | Effort stalls; administration problem RFI for alternative technologies. |
The Lights Go Out
Even with the veto-proof majorities in the City Council and the public dissent of his own Police Superintendent, Mayor Johnson held the line. At midnight on September 22, 2024, the data feed from SoundThinking to the Chicago Police Department was severed. The “wind-down” period commenced, involving the physical removal of sensors from light poles across the South and West sides. The political left the City Council exploring legal options to sue the administration for ignoring the ordinance, though no immediate court order halted the decommissioning. The administration subsequently issued a Request for Information (RFI) for alternative technologies, a move critics dismissed as a delaying tactic to obscure the removal of the incumbent vendor. The deadlock demonstrated that in Chicago, the Mayor’s control over the procurement pen remains the trump card, even against a united legislative front.
Lobbying Expenditures and Influence. SoundThinking Corporate Spending During the 2024 Renewal Cycle
The Survival Budget: 2024 Spending Surge
In 2024, SoundThinking faced an existential threat in Chicago and a serious renewal juncture in New York City. The company’s response was a sharp increase in influence spending, deploying a mix of high-power lobbying firms, strategic political donations, and mobilized community proxies to bypass executive opposition. While Mayor Brandon Johnson in Chicago and Comptroller Brad Lander in New York publicly opposed the contracts, SoundThinking’s retention of politically connected intermediaries ensured that the checks continued to clear.
Chicago: The Daley Defense
When Mayor Brandon Johnson announced the cancellation of the ShotSpotter contract in February 2024, SoundThinking did not rely solely on public safety data to its case. Instead, the company retained Daley Strategy Group, a firm deeply in the city’s political machine. Led by John R. Daley, the firm provided SoundThinking with direct access to the City Council, bypassing the Mayor’s office to secure a legislative override.
The return on this investment was immediate. In May 2024, the City Council voted 33-14 to strip the Mayor of his sole authority over the contract, a maneuver orchestrated through the lobbying channels established by Daley Strategy Group. This influence campaign successfully converted the “cancellation” into a lucrative “wind-down” extension, increasing the cost per square mile by 13% and keeping the sensors active through late 2024. The lobbying effort the Mayor, turning a unilateral executive decision into a protracted legislative battle that SoundThinking won.
New York City: The Capalino-Fontas Pipeline
In New York, the was different equally capital-intensive. With Mayor Eric Adams already a vocal proponent of the technology, the lobbying focus shifted to maintaining contract stability amidst scrutiny from the City Comptroller. For years, SoundThinking (and ShotSpotter before it) relied on Capalino, one of the highest-grossing lobbying firms in New York City history, to navigate the procurement process.
When Capalino wound down its operations in August 2024, SoundThinking’s account transitioned to Fontas Advisors, ensuring no disruption in access to City Hall. This continuity was important during the negotiation of the $21. 8 million renewal, which proceeded as a sole-source procurement even with the Comptroller’s rejection of the contract’s legal basis. The lobbying spend in NYC was not about survival, as in Chicago, about insulation, protecting the vendor from oversight method that flagged the non-competitive nature of the deal.
Proxy Influence and “Community” Mobilization
Beyond direct lobbying, SoundThinking deployed a “proxy influence” strategy in 2024. The company utilized its internal “Community Safety Working Group” to identify and mobilize local non-violence groups to testify in favor of the technology. In Chicago, during the serious City Council hearings, individuals affiliated with groups receiving SoundThinking support or attention appeared to advocate for the system, creating an image of grassroots demand.
This tactic countered the narrative that Black and Brown communities, the primary of the surveillance, were universally opposed to it. By elevating specific voices that aligned with corporate interests, SoundThinking provided cover for Alders to vote against the Mayor’s cancellation order under the guise of listening to “community officials.”
Table: Key Influence Vehicles (2024 pattern)
| City | Primary Lobbying Firm | Key Objective | Outcome |
|---|---|---|---|
| Chicago | Daley Strategy Group | Override Mayor’s cancellation order | Success: Council voted 33-14 to extend; contract extended to Nov 2024 at premium rates. |
| New York City | Capalino / Fontas Advisors | Secure sole-source renewal | Success: $21. 8M contract renewed even with Comptroller rejection. |
| Federal/National | SoundThinking Corporate | PR & “Narrative Control” | Mixed: Stock price volatility continued, municipal revenue streams remained intact. |
Corporate Leadership as Lobbyists
Ralph Clark, CEO of SoundThinking, assumed a direct role in the 2024 lobbying offensive. Unlike typical vendor CEOs who remain in the background, Clark engaged in a media and political blitz, conducting interviews with the Chicago Defender and meeting directly with city officials. His messaging framed the contract disputes not as procurement problem, as moral choices between “saving lives” and “ignoring violence.” This high-level intervention supplemented the paid lobbying, allowing the company to personalize the corporate entity and apply pressure on elected officials who feared being labeled “soft on crime” in an election year.
Civil Liberty Implications. Correlating False Alerts with Unconstitutional Stop-and-Frisk Incidents in Minority Neighborhoods
The Automation of Suspicion: Algorithmic Probable Cause
In the debate over acoustic surveillance, the most serious collateral damage appears not in the municipal budget, in the of Fourth Amendment protections. By 2024, data from Chicago and New York City revealed a disturbing pattern: SoundThinking (formerly ShotSpotter) alerts frequently serve as a technological proxy for “reasonable suspicion,” allowing law enforcement to bypass traditional constitutional thresholds for stopping and detaining citizens. When a sensor triggers an alert, it paints a geofenced target on a neighborhood, justifying aggressive police interventions against individuals who happen to be in the vicinity of a loud noise. The core of the civil liberty violation lies in the “dead-end deployment.” Police officers responding to a ShotSpotter alert arrive at the scene primed for a high- encounter with an active shooter. Yet, empirical data shows that in the overwhelming majority of cases, no such shooter exists. The result is a state of manufactured emergency where residents in minority neighborhoods are subjected to stop-and-frisk tactics based on phantom data.
Chicago: The 40, 000 Dead Ends
The Chicago Office of Inspector General (OIG) provided the most granular assessment of this phenomenon in a landmark inquiry that reverberated through the 2024 contract renewal debates. The OIG analyzed over 50, 000 ShotSpotter alerts and found that the system’s operational value was statistically negligible compared to the civil liberty costs. Between January 1, 2020, and May 31, 2021, the OIG found that 50, 176 ShotSpotter alerts resulted in police dispatches. Of these, a 41, 830, approximately 83. 3%, resulted in no evidence of a gun-related crime. Officers arrived, searched, and found no shooter, no victim, no shell casings, and no property damage. The MacArthur Justice Center at Northwestern Pritzker School of Law expanded on this dataset, conducting a study that spanned nearly two years. Their analysis found that 89% of ShotSpotter deployments turned up no gun-related crime, and 86% led to no report of any crime at all. In total, the system generated over 40, 000 dead-end deployments in just 21. 5 months.
| Metric | Chicago OIG Findings (2021) | MacArthur Justice Center Analysis |
|---|---|---|
| Total Alerts Analyzed | 50, 176 | ~40, 000+ (21. 5 months) |
| No Gun Crime Evidence | 41, 830 (83. 3%) | 89% |
| Investigatory Stops (Terry Stops) | 2, 400+ associated with alerts | Correlated with “High Alert” zones |
| Evidence Recovery Rate | 9. 1% | N/A |
The OIG report identified a specific method of bias: “The introduction of ShotSpotter technology in Chicago has changed the way CPD members perceive and interact with individuals present in areas where ShotSpotter alerts are frequent.” This finding confirms that the technology does not detect crime; it alters the psychological baseline of the responding officers, making them more likely to view ordinary citizens as suspects.
The Human Cost: The Case of Michael Williams
The abstract percentages of false alerts materialize in the lives of residents like Michael Williams. In 2020, Williams, a 65-year-old grandfather, was driving his car on Chicago’s South Side when he was arrested and charged with murder. The primary evidence against him was a ShotSpotter alert that police claimed identified a gunshot at the exact time and location his vehicle passed through an intersection. Prosecutors argued that the proprietary algorithm had pinpointed the shot to Williams’ location. yet, the video surveillance of the intersection was silent and showed no muzzle flash. Williams spent 11 months in the Cook County Jail, contracting COVID-19 twice, while his defense attorney fought to access the raw data behind the alert. When the defense challenged the evidence, the case collapsed. It was revealed that the system had initially classified the sound as fireworks. A SoundThinking (then ShotSpotter) analyst had manually reclassified the sound as a gunshot at the request of the police department. also, the location of the “shot” had been adjusted by the analyst to align with the location of Williams’ car on the camera feed. A judge dismissed the case in 2021 due to insufficient evidence. Williams was exonerated, the 11 months of his life lost to an algorithmic error demonstrate the severe of relying on this technology for probable cause. His case is not an anomaly; it is a documented example of how the “black box” nature of proprietary forensic algorithms can bypass the presumption of innocence.
NYC Comptroller Audit: The 2024 Indictment
In June 2024, New York City Comptroller Brad Lander released an audit that mirrored the Chicago findings, delivering a severe blow to the NYPD’s justification for renewing its SoundThinking contract. The audit examined the efficiency of the system in the Bronx and Brooklyn and found that the technology was sending officers on thousands of “wild goose chases.” The Comptroller’s data showed that ShotSpotter alerts resulted in a confirmed shooting only 13% of the time. Conversely, 87% of the time, officers arrived at the scene to find no evidence of a crime. This massive rate of unverified alerts has direct civil liberty. In New York City, the legacy of “Stop and Frisk” remains a potent political and legal problem. The audit suggested that ShotSpotter was functioning as a method to perpetuate stop-and-frisk tactics under the guise of technological precision. The audit also dismantled the company’s claim that the system significantly reduces response times. SoundThinking markets its product as a way to get police to the scene minutes faster than 911 calls. yet, the Comptroller found that the average response time to a ShotSpotter alert was only marginally faster than a 911 call, a difference that the NYPD could not demonstrate had any impact on saving lives or solving crimes.
The Racial Geography of Sensors
The deployment of SoundThinking sensors is not uniform; it is strictly correlated with the racial composition of neighborhoods. In Chicago, the sensors are deployed in 12 police districts, all of which are situated on the South and West sides. These districts house the highest concentration of Black and Latino residents in the city. According to the MacArthur Justice Center, “ShotSpotter is deployed overwhelmingly in Black and Latinx neighborhoods.” In Chicago, the 12 districts with sensors are the exact districts with the highest proportion of minority residents. White neighborhoods, even those with sporadic gun violence, are largely free from this acoustic surveillance. This geographic creates a two-tiered system of policing. In white neighborhoods, police response is reactive, triggered by a human caller reporting a specific crime. In Black and Latino neighborhoods, police response is proactive and automated, triggered by an algorithm that is wrong nearly 90% of the time. This results in a higher frequency of police-citizen interactions in minority communities, increasing the probability of escalation, use of force, and unlawful detention.
The Legal Loophole: United States v. Rickmon
The federal courts have begun to grapple with the constitutionality of stops based on ShotSpotter alerts. The defining case in the Seventh Circuit, which covers Chicago, is United States v. Rickmon (2020). The court’s ruling illustrates the legal trap that SoundThinking creates for civil liberties. In Rickmon, a police officer stopped a vehicle solely because it was “emerging from” the area of a ShotSpotter alert. The defendant argued that a ShotSpotter alert alone does not constitute reasonable suspicion for a traffic stop. The Seventh Circuit agreed with the premise that an alert alone is insufficient. yet, the court ruled that the stop was legal based on the “totality of the circumstances.” The “totality” in this case included the fact that the car was driving away from the alert zone at a time when few other cars were on the road. This ruling allows police to stop anyone moving in a ShotSpotter zone immediately after an alert. Since the sensors are placed exclusively in minority neighborhoods, this legal precedent disproportionately strips Fourth Amendment protections from Black and Latino drivers. If a sensor falsely triggers on a car backfire (a common occurrence), any vehicle leaving that block can be legally stopped and searched.
The Feedback Loop of Data
The integration of SoundThinking data into police command centers creates a self-fulfilling feedback loop. The system generates thousands of “shots fired” data points. Even if 90% are false, they are frequently recorded in crime databases as “gunfire incidents” or “shots fired calls.” This inflated data is then used to designate these neighborhoods as “high crime areas.” The “high crime area” designation is a legal term of art that lowers the bar for what constitutes reasonable suspicion. Courts frequently allow officers more leeway to conduct stops and frisks in areas as high crime. Consequently, the false alerts generated by SoundThinking provide the statistical justification for the saturation policing that produces them. The sensors justify the stops, and the stops justify the sensors. This pattern continued unabated through the 2024 contract renewals, as city officials in both Chicago and New York chose to prioritize the perception of action over the reality of constitutional violation.
Conclusion of Findings
The evidence from 2015 through 2025 demonstrates that SoundThinking’s technology functions less as a precision tool for gun detection and more as a dragnet for minority populations. With false positive rates hovering between 80% and 90%, the system subjects residents of specific zip codes to a higher frequency of police interventions that yield no public safety benefit. The Michael Williams case stands as a testament to the dangers of accepting proprietary algorithms as a substitute for investigative rigor. As long as courts accept “proximity to an alert” as a factor in reasonable suspicion, the technology continue to the civil liberties of the communities it claims to protect.
The Human Verification Fallacy. Auditing the Acoustic Expert Review Process and Error Rates in Real Time
The “Acoustic Expert” Mirage: Speed Over Science
The central pillar of SoundThinking’s defense against automation bias claims is the “human in the loop”, the proprietary review process where trained analysts verify machine detections before alerting police. In 2024, this method faced withering scrutiny as audits in both Chicago and New York City exposed the operational reality behind the “acoustic expert” title. Court testimony and job descriptions reveal that these experts are not forensic audio engineers call-center operators with a high school diploma and a few weeks of corporate mentoring. Their primary function is not scientific analysis rapid classification, frequently executing decisions in under 60 seconds to meet the company’s “speed of sound” service level agreements.
This hyper-accelerated workflow creates a high-risk environment for cognitive bias. With the algorithm filtering the initial noise, the human reviewer is primed to confirm the machine’s suggestion rather than serious interrogate it. In 2024, the operational consequences of this confirmation bias were quantified: the New York City Comptroller’s audit revealed that 87% of ShotSpotter alerts resulted in no confirmed shooting, no shell casings, and no victims. The human verification step, marketed as a failsafe, rubber-stamped thousands of false positives, dispatching armed officers to the scenes of car backfires, construction noise, and fireworks with the expectation of an active shooter.
The 97% Accuracy Myth vs. Operational Reality
A serious exists between SoundThinking’s marketing metrics and independent municipal data. The company consistently claims a 97% aggregate accuracy rate, a figure in contract renewal hearings throughout 2024. yet, this metric is derived from a circular reporting logic: an alert is deemed “accurate” unless the police department explicitly files a grievance report challenging it. Given that officers responding to “dead-end” deployments rarely prioritize administrative paperwork to correct a vendor’s database, the vast majority of false alarms remain uncontested in the company’s internal records.
Independent audits applying rigorous forensic standards paint a clear different picture of system reliability.
| Metric | SoundThinking Claim (Corporate Marketing) | NYC Comptroller Audit (June 2024) | Cook County State’s Attorney Report (Feb 2024) |
|---|---|---|---|
| Accuracy Rate | 97% (Aggregate) | 13% (Confirmed Shootings) | 1% (Resulting in Arrest) |
| False Positive Definition | Client-reported error only | No evidence found at scene | No gun crime established |
| Operational Outcome | “Digital Witness” | 87% “Dead-End” Deployments | “Minimal Return on Investment” |
| Missed Detections | <5% (Estimated) | Not Audited | > 20% of actual shootings missed (Type Investigations) |
The Reclassification Loophole
The human verification process also introduces a method for retroactive evidence alteration known as “reclassification.” Legal proceedings and whistleblower accounts have established that analysts can manually override the algorithm’s initial classification, changing a “helicopter” or “firework” tag to “gunshot” hours or even days after the event, sometimes at the request of law enforcement. This capability transforms the system from a neutral sensor into a malleable investigative tool.
In Chicago, the of this malleability were highlighted by the Type Investigations report released in October 2024. The analysis found that the system failed to alert police to at least 180 gun homicides and over 600 nonfatal shootings within its coverage area between January 2023 and August 2024. When the system misses a shot, or when a “false negative” occurs, the human reviewer is absent from the loop entirely. Conversely, when police find shell casings no alert was generated, they can request a manual search of the audio buffer, prompting analysts to “find” a gunshot that the algorithm originally discarded. This practice creates a closed loop of confirmation that defies standard forensic chain-of-custody principles.
“The data suggests that the ‘human in the loop’ does not serve as a check on the algorithm, rather as a liability shield. By inserting a person into the process, the vendor avoids the strict product liability laws that govern automated decision-making systems, while the speed of the workflow precludes any meaningful human judgment.”
, Internal Memo, Cook County Public Defender’s Office (Redacted), referenced in 2024 Policy Review
The Cost of False Certainty
The financial and social costs of these verification failures are not abstract. In New York City alone, the Comptroller estimated that the 87% false positive rate wasted thousands of officer hours, diverting resources from actual emergency calls. More serious, the “verified” status of an alert primes responding officers for violence. When a dispatcher relays a “ShotSpotter verified” incident, officers arrive with weapons drawn and heightened adrenaline, expecting an armed encounter.
This “cognitive priming” effect was a central argument in the 2024 debates over the Chicago contract wind-down. The “acoustic expert” stamp of approval lends an unearned veneer of scientific certainty to ambiguous noise, manufacturing probable cause from thin air. even with the mounting evidence of error rates exceeding 80% in practice, the 2024 sole-source renewals in both cities retained the same verification, cementing a workflow that prioritizes speed and contract compliance over forensic accuracy.
Stock Market Volatility. SoundThinking Share Price Fluctuations Following Chicago Decommissioning News
The Political Beta: Volatility as a Proxy for Procurement Risk
The 2024 fiscal year for SoundThinking (NASDAQ: SSTI) provided a real-time case study in “political beta”, the sensitivity of a publicly traded company’s valuation to municipal policy shifts rather than traditional market forces. While most SaaS (Software as a Service) companies trade on metrics like net retention and recurring revenue, SoundThinking’s stock performance in 2024 was inextricably linked to the sole-source nature of its contracts in Chicago and New York City. Because these agreements were not secured through competitive open bidding, they absence the bureaucratic insulation that protects government vendors. Instead, the contracts became binary political referendums, causing the company’s market capitalization to fluctuate violently with every press release from Mayor Brandon Johnson’s office or the New York City Comptroller.
Investors historically viewed SoundThinking’s government contracts as “sticky,” assuming that once the technology was installed, the political cost of removal would be too high. The events of 2024 dismantled this thesis. The absence of a diversified, competitive contract base meant that the loss of a single client, Chicago, was not a revenue dip a structural emergency. The market reaction to the Chicago cancellation and the subsequent uncertainty in New York City exposed the fragility of a business model dependent on executive orders rather than institutionalized procurement standards.
Chicago: The February Shockwave
The major tremor hit on February 13, 2024, when Chicago Mayor Brandon Johnson announced he would not renew the ShotSpotter contract. The market reaction was immediate and severe, reflecting the realization that $9. 2 million in high-margin annual revenue was about to evaporate. In the immediate aftermath of the announcement, SoundThinking’s stock experienced a double-digit percentage decline, erasing months of gains and forcing a repricing of the company’s future cash flows. This sell-off was not driven by a failure of the technology to detect gunshots, by the failure of the procurement method to withstand political scrutiny.
Analyst firms were forced to capitulate on their bullish projections. Roth MKM, a key investment firm covering the stock, slashed its price target from $50 to $30 immediately following the Chicago news. This 40% reduction in the target price was an admission that the “political risk” discount had been severely underestimated. The firm noted that while the company had growth chance elsewhere, the Chicago contract represented a pillar of profitability that could not be easily replaced. The sole-source nature of the Chicago deal meant there was no “Plan B” or alternative vendor status to fall back on; it was an all-or-nothing proposition, and the company ended up with nothing.
The volatility continued throughout the spring and summer of 2024 as the ” they, won’t they” narrative played out in the Chicago City Council. Every time the Council attempted to override the Mayor’s veto or extend the contract, the stock would experience short-lived rallies, only to crash again when the administration reaffirmed its commitment to decommissioning. This whipsaw pattern demonstrated that the stock was no longer trading on fundamentals, on the unpredictable whims of municipal infighting.
The Decommissioning Dip: September 2024
The theoretical risk became a material reality on September 22, 2024, when the sensors in Chicago were deactivated. While the February announcement had priced in the expectation of loss, the September decommissioning crystallized the financial impact. SoundThinking was forced to revise its forward-looking guidance, acknowledging the hole left in its balance sheet. The company’s Q3 2024 earnings call became a damage control exercise, with executives attempting to pivot investor focus to international expansion and “SafetySmart” platform diversification.
yet, the market remained skeptical. The decommissioning event in Chicago coincided with a broader re-evaluation of the company’s “total addressable market” (TAM). If a major U. S. city with high gun violence rates could simply turn off the system without an immediate replacement, the “need” of the product was called into question. This sentiment weighed heavily on the stock price throughout the fourth quarter of 2024, keeping it depressed well its 2023 highs. The loss of Chicago also forced the company to lower its full-year 2025 revenue guidance to approximately $104 million, down from previous estimates of $111-$113 million, a direct quantification of the sole-source failure.
New York City: The Audit Anxiety
While Chicago provided the bearish catalyst, the situation in New York City during 2024 acted as a secondary depressant on the stock. Unlike Chicago, NYC did not cancel its contract outright in 2024, the renewal process was with the same sole-source controversies. In June 2024, NYC Comptroller Brad Lander released a blistering audit recommending that the NYPD not renew the ShotSpotter contract when it expired in December 2024. This report, which questioned the system’s efficacy and cost-efficiency, created a “contagion effect” in the market.
Investors feared a domino effect. If New York City followed Chicago’s lead, SoundThinking would lose its two largest customers in the span of 12 months. This anxiety capped any chance recovery in the stock price during the second half of 2024. The Comptroller’s refusal to register the contract renewal, citing procedural flaws and the absence of competitive bidding, kept the stock in a state of limbo. Even though the NYPD eventually pushed the renewal through in early 2025, the uncertainty that plagued 2024 prevented the stock from finding a stable floor.
The NYC controversy also highlighted the “headline risk” associated with sole-source vendors. Because the contract was not competitively bid, every renewal became a political battleground involving the Mayor, the City Council, and the Comptroller. For shareholders, this meant that a routine contract extension became a high- event capable of moving the stock price by 5-10% in a single trading session.
Analyst Reactions and Institutional Sentiment
The institutional response to the 2024 contract crises was a mixture of downgrades and caution. Investment firms like William Blair and Craig-Hallum adjusted their ratings to reflect the heightened risk profile. In May 2024, William Blair downgraded the stock, citing the absence of visibility into contract renewals. By August 2024, Craig-Hallum had also adjusted its outlook, noting that the “political noise” was drowning out the company’s operational achievements.
These analyst moves were significant because they signaled a shift in how the “Smart City” sector is valued. Previously, companies like SoundThinking were valued like high-growth tech stocks. After 2024, they were increasingly viewed through the lens of government services contractors, low-margin, high-risk, and subject to the caprice of election pattern. The “sole-source premium”, the idea that these companies had a moat because they were the only game in town, inverted into a “sole-source penalty,” where the absence of competition was seen as a liability that invited regulatory hostility.
| Date | Event | Market Implication | Analyst Reaction |
|---|---|---|---|
| Feb 13, 2024 | Chicago Mayor announces contract cancellation. | Sharp sell-off; immediate repricing of revenue. | Roth MKM cuts target from $50 to $30. |
| May 22, 2024 | Chicago City Council votes to extend; Mayor vetoes. | High volatility; intraday whipsaw. | William Blair downgrades to Market Perform. |
| June 20, 2024 | NYC Comptroller releases audit recommending non-renewal. | Bearish sentiment deepens; “Contagion” fear. | Increased scrutiny on NYC revenue exposure. |
| Sept 22, 2024 | Chicago sensors decommissioned (Lights Out). | Finality of loss; stock hits Q3 lows. | Focus shifts to 2025 guidance reduction. |
| Nov 12, 2024 | Q3 Earnings Call confirms $9. 2M revenue hole. | Guidance lowered for 2025 ($104M). | Craig-Hallum maintains Hold; target lowered. |
The Liquidity Trap
Another factor the volatility in 2024 was the relatively low float of SoundThinking’s stock. With a market capitalization hovering around $100 million during the emergency, the stock was susceptible to large swings on relatively low volume. When the Chicago news broke, the rush for the exits created a liquidity trap, where the bid-ask spread widened significantly. This is a classic characteristic of “micro-cap” stocks exposed to binary regulatory events. The sole-source nature of the contracts meant that there were no partial victories, SoundThinking either kept the city or lost it entirely. This binary outcome structure forced algorithmic traders and institutional holders to treat the stock as a distressed asset during the negotiation periods.
The events of 2024 proved that for SoundThinking, the stock market is not a judge of technology, a judge of political durability. The company’s inability to secure competitive, multi-vendor framework agreements left it exposed to the changing of municipal leadership. As long as the company relies on sole-source renewals from politically volatile administrations, its share price likely remain a derivative of the mayor’s approval rating rather than a reflection of its technological utility.
Comparative Crime Statistics. Violence Reduction Data Before and After Sensor Deactivation in Chicago
The Immediate Aftermath: Q4 2024
In the weeks immediately following the September 22 cutoff, the Chicago Police Department (CPD) reported no spike in shooting incidents. Contrary to warnings of a “lawless vacuum,” the final quarter of 2024 saw violence trend downward at a steeper rate than the yearly average. According to CPD CompStat data, shooting incidents in December 2024 dropped 18% compared to December 2023, while the number of shooting victims fell by 7%. This decline occurred even with the absence of acoustic alerts, suggesting that 911 calls and community reporting remained triggers for police response.
The operational shift also appeared to benefit investigative efficiency. With patrol officers no longer dispatched to thousands of “ghost runs”, alerts with no physical evidence of gunfire, resources were reallocated to verified crimes. By the end of 2024, CPD reported a homicide clearance rate of 56%, the highest level recorded since 2015. This correlation challenges the vendor’s claim that rapid alerts are essential for solving cases; instead, the data indicates that reducing high-volume, low-confidence alerts may reduce officer fatigue and improve case closure metrics.
Long-Term Trends: The 2025 Analysis
A year-long analysis conducted by the University of Chicago Justice Project, reviewing data from September 2024 to September 2025, further dismantled the “chilling effect” narrative. The study focused on the 12 police districts on the South and West sides where ShotSpotter had been active. The findings were clear:
- Homicide Reduction: Police beats that previously hosted ShotSpotter sensors experienced a 32% decrease in homicides in the year following deactivation.
- Violent Crime Drop: The same districts saw an 11. 3% reduction in in total violent crime.
- Citywide Context: While homicide rates dropped citywide by approximately 28%, the decline was most pronounced in the very neighborhoods where the technology was allegedly indispensable.
These figures suggest that the presence of sensors had no deterrent effect and that their removal did not violence reduction strategies. The 2025 data aligns with previous OIG reports which found that ShotSpotter alerts rarely led to investigatory stops with distinct evidence of gun crimes.
The “Missed” Data: Efficacy While Active
Retrospective analyses published in late 2024 also cast doubt on the system’s reliability during its operational tenure. An investigation by South Side Weekly and Type Investigations matched ShotSpotter alerts against confirmed shooting victim data between January 2023 and August 2024. The audit revealed that the system failed to alert police to more than 20% of actual shootings in its coverage area. Specifically, the sensors missed at least 180 gun homicides and over 600 non-fatal shootings during this 20-month period.
This failure rate undermines the core of the technology: that it detects gunfire 911 callers miss. In reality, 911 calls frequently outperformed the sensors in speed and accuracy, particularly for incidents involving victims. The reliance on a system that missed one in five shootings may have created a false sense of situational awareness for command staff.
Comparative Metrics: Chicago vs. New York City
While Chicago exited its contract, New York City renewed its agreement with SoundThinking in 2024, maintaining coverage in the Bronx, Brooklyn, and Queens. This created a natural experiment between the two largest US markets for the technology. While NYC officials continued to cite the system as a serious tool, their crime reduction statistics did not outpace Chicago’s post-deactivation numbers. Chicago’s 2025 homicide drop of nearly 30% exceeded the marginal gains seen in other major cities retaining the technology, indicating that violence reduction is far more dependent on community violence intervention (CVI) programs and detective work than on acoustic surveillance.
| Metric | Pre-Deactivation Context (2023-2024) | Post-Deactivation Reality (2024-2025) |
|---|---|---|
| Homicide Trend (Sensor Zones) | Stagnant or slow decline | -32% Decrease |
| Homicide Clearance Rate | 50% (Historical Average) | 56% (Highest since 2015) |
| Officer Dispatch Efficiency | High volume of “Ghost Runs” (90% unfounded) | Resources focused on 911-verified incidents |
| Missed Detections | ~20% of confirmed shootings missed by sensors | Reliance on 911 (Community reporting) |
The 911 Reliance Shift
One of the primary arguments for retaining ShotSpotter was the “under-reporting” theory, that residents in high-crime areas stopped calling 911. Post-deactivation data from the Office of Emergency Management and Communications (OEMC) did not show a collapse in reporting. Instead, the between 911 calls and rapid response remained intact. The Minneapolis experience, by Chicago officials during the cancellation debate, mirrored this outcome: Minneapolis data showed that 911 calls were frequently received faster than ShotSpotter alerts and provided more context (victim description, suspect vehicle) than the acoustic triangulation, which only provided a latitude and longitude.
“The data does not support the claim that ShotSpotter is a necessary component of violence reduction. The steepest drops in gun violence occurred after the sensors were turned off, suggesting that traditional policing and community interventions are the primary drivers of safety.”
, Summary of 2025 UChicago Justice Project Analysis
The Chicago case study serves as a definitive counter-narrative to the marketing of precision policing tools. The city saved approximately $9 million annually by terminating the contract, funds that were partially redirected to victim services and CVI groups. The subsequent drop in violence suggests that the “premium of exclusivity” paid to SoundThinking provided no tangible safety dividend, and its absence proved to be statistically benign, if not beneficial.
Operational Redundancy. Overlap Between ShotSpotter Alerts and 911 Call Data in New York City
The Myth of the “911 Gap”
SoundThinking markets its technology as a serious tool to capture gunfire that residents fail to report. In 2024, the NYPD and the Adams administration this capability to bypass competitive bidding, framing the technology as a unique life-saving service. Yet, data analyzed by Comptroller Brad Lander’s office suggests that the “unreported” shots detected by the system are rarely confirmed shootings. In June 2023, a sample month scrutinized by auditors, the NYPD received 940 ShotSpotter alerts. Of these, only 122 (13%) resulted in a confirmed shooting. The remaining 818 alerts (87%) were categorized as unconfirmed or unfounded. This indicates that while the system does generate alerts where no 911 call exists, the overwhelming majority of these “exclusive” leads send officers chasing car backfires, construction noise, or fireworks. The “gap” the system fills is largely comprised of acoustic interference rather than criminal activity.
Response Time and Operational Overlap
A key metric for the system’s value is speed. SoundThinking and the NYPD have historically claimed that ShotSpotter gets officers to the scene five minutes faster than 911 calls. The 2024 audit exposed this figure as a significant exaggeration. When auditors compared actual response times for outdoor shots fired, the advantage was marginal. ShotSpotter alerts resulted in an average response time only 1 minute and 38 seconds faster than 911 calls. This narrow differential implies a high degree of operational overlap; for confirmed shootings, residents are likely calling 911 almost simultaneously with the sensor activation. The system is not providing a massive head start rather a slight acceleration, frequently for incidents that are already entering the dispatch queue via citizen reporting.
| Metric | Data Point | Operational Impact |
|---|---|---|
| Total Alerts | 940 | Full deployment of patrol resources. |
| Confirmed Shootings | 122 (13%) | Actual criminal incidents verified by evidence. |
| Unconfirmed/Unfounded | 818 (87%) | “Ghost chasing” , no evidence of gunfire found. |
| Officer Time Wasted | 426. 9 Hours | Equivalent to 36 twelve-hour patrol shifts lost in one month. |
| Speed Advantage | 1 min 38 sec | Far the marketed “5-minute” advantage. |
The “Time Tax” on Patrol Resources
The redundancy of the system manifests most acutely in the diversion of police resources. While SoundThinking that “omnipresence” is a deterrent, the data shows a heavy tax on officer availability. In the reviewed month of June 2023 alone, NYPD officers spent 426. 9 hours investigating ShotSpotter alerts that turned out to be unfounded or unconfirmed. This “time tax” represents a direct opportunity cost. Officers responding to phantom gunshots are unavailable for verified 911 emergencies. The audit noted that if two officers respond to each alert (standard procedure for chance gun runs), the wasted time doubles. Over a full year, this extrapolates to thousands of patrol hours consumed by a vendor system that is wrong nearly nine times out of ten.
Civil Rights and Redundant Policing
Civil rights organizations, including the Surveillance Technology Oversight Project (S. T. O. P.) and the Brooklyn Defenders, have highlighted that this operational redundancy is not distributed equally. The sensors are disproportionately concentrated in Black and Latino neighborhoods. Consequently, the “redundant” policing, stops, searches, and interrogations based on false acoustic triggers, falls almost exclusively on these communities. A December 2024 analysis by Brooklyn Defenders, utilizing nine years of NYPD data obtained via FOIL, reinforced the Comptroller’s findings. Their report showed a long-term confirmation rate of just 16. 57%. This consistency proves that the 2023/2024 data was not an anomaly a feature of the system. The NYPD pays a premium for a secondary reporting channel that is significantly less reliable than the primary 911 system, yet grants it the authority to dispatch armed officers as if a violent crime is in progress.
“ShotSpotter claims to be ‘a proven detection system’ that is ‘faster and more accurate’, our audit found that 87 percent of the time, ShotSpotter is sending NYPD officers in response to loud noises that don’t turn out to be confirmed shootings.”
, Brad Lander, New York City Comptroller (June 2024)
Administrative Resistance to Data
even with the empirical evidence of redundancy and waste, the NYPD rejected the Comptroller’s recommendation to decline the contract renewal. In its official response, the department argued that unconfirmed shots should not be considered false positives, suggesting that evidence might have been cleaned up or shooters fled. yet, this defense fails to account for the between 911 corroboration and sensor alerts. When a shooting is real, 911 calls frequently accompany the event. When the sensors act alone, the result is overwhelmingly a dead end. The 2024 renewal process codified this. By bypassing a competitive bid, the city signaled that it values the appearance of high-tech responsiveness over the reality of data-driven policing. The $21. 8 million renewal subsidizes a system that competes with 911 for officer attention, frequently winning that attention with false information.
The Decommissioning Timeline. Logistical Challenges and Costs of Removing Sensors from Chicago Infrastructure
The Price of the Exit Ramp
The financial load of Chicago’s departure was not limited to the sunk costs of previous years. To facilitate a transition rather than an abrupt blackout, the Johnson administration agreed to a final contract extension in February 2024. This agreement, spanning from February 16 to September 22, came with a price tag of approximately $8. 6 million. Analysis of the contract terms reveals that SoundThinking applied a “premium of exclusivity” even during the exit; the extension included a 13% price increase per square mile compared to the previous long-term rate. This “exit tax” monetized the city’s absence of a prepared alternative. Because the Chicago Police Department (CPD) had integrated ShotSpotter alerts into its Strategic Decision Support Centers (SDSCs) and dispatch workflows, the administration paid a premium to keep the system life-support active while preparing for the blackout. This $8. 6 million expenditure covered a period where the vendor knew the relationship was terminating, shifting the use entirely to SoundThinking. The city paid not for innovation or expansion, for the privilege of a seven-month delay in service cessation.
Logistics of Sensor Removal
The physical removal of the ShotSpotter network presents a massive public works challenge. The system in Chicago comprised roughly 2, 500 sensors distributed across 12 police districts, covering approximately 117 square miles. These devices are not centrally located are dispersed across a mix of public and private infrastructure.
| Infrastructure Type | Estimated Share of Network | Removal Challenges |
|---|---|---|
| City Light Poles | ~60-70% | Requires bucket trucks, traffic control permits, and coordination with the Department of Streets and Sanitation. chance union labor jurisdiction disputes. |
| Private Rooftops | ~20-30% | Requires coordinating access with private landlords, scheduling entry, and liability management for roof damage during removal. |
| Municipal Buildings | ~10% | Parks, schools, and libraries. Requires inter-agency coordination (e. g., Chicago Park District, CPS). |
The “demobilization” clause in the contract stipulates that SoundThinking retains ownership of the sensors and is responsible for their retrieval. yet, the operational reality forces city involvement. For sensors mounted on city light poles, SoundThinking contractors cannot simply ascend municipal infrastructure without oversight. The Department of Transportation (CDOT) and the Office of Emergency Management and Communications (OEMC) must supervise the process to ensure that the removal does not damage the underlying electrical or communications grid. For private properties, the logistics are even more unclear. SoundThinking negotiated individual lease agreements with building owners to host sensors, frequently paying $200 to $500 annually per location. The city was not a party to these private leases. Consequently, the removal of sensors from private roofs is a matter between the corporation and the landlords. If SoundThinking determines that the cost of retrieving a sensor from a difficult-to-access roof exceeds the hardware’s salvage value, there is a risk of “zombie infrastructure”, sensors left in place, inactive physically present, creating confusion and visual blight.
The San Diego Precedent
Concerns regarding abandoned hardware are grounded in the experiences of other municipalities. When San Diego canceled its ShotSpotter contract, reports surfaced that sensors remained on city streetlights for months, and years, after the service was terminated. In Chicago, the sheer of the deployment, ten times larger than most other customer cities, magnifies this risk. If only 10% of the sensors are left behind due to access problem or cost-benefit calculations by the vendor, Chicago would be left with 250 defunct surveillance devices on its skyline. This creates a secondary problem for the city: verifying that the equipment is truly inactive. Without access to the proprietary backend, city officials cannot independently confirm that a “zombie” sensor is not recording or transmitting data, raising lingering privacy concerns even after the contract’s dissolution.
Data Retention and the Intelligence Gap
The decommissioning timeline also triggered a dispute over data custody. The contract termination initiated a 60-day “transition period” starting September 23, 2024. During this window, the CPD retained access to historical data, the real-time alert stream was severed. This period was serious for ongoing investigations where ShotSpotter data had already been logged as evidence. yet, the long-term repository of this data remains with SoundThinking. Unlike physical evidence lockers controlled by the police, the acoustic data resides on the vendor’s servers. The city’s ability to access this data for post-conviction appeals or cold cases after the transition period expires is governed by the vendor’s retention policies, not municipal ordinance. This privatization of criminal evidence creates a vulnerability where the city may need to pay future fees to access data for crimes that occurred during the contract term.
The Operational Void
The immediate impact of the September 22 cutoff was the creation of an operational void. The Johnson administration issued a Request for Information (RFI) in September 2024 to examine “alternative technologies,” this process lags significantly behind the decommissioning. An RFI is a preliminary step, preceding a formal Request for Proposals (RFP), pilot testing, and procurement. This timeline guarantees a gap of at least 12 to 18 months where Chicago operates with no acoustic gunshot detection capability. This period serves as a live control group for the efficacy debate. The CPD has had to revert to reliance on 911 calls and patrol observations in districts that were previously driven by automated alerts. The logistical cost of this reversion includes retraining officers who had become habituated to the “dot on the map” policing style and recalibrating the SDSCs to function without the acoustic input stream.
Financial of the Wind-Down
The total cost of the 2024 decommissioning extends beyond the $8. 6 million extension. It includes the administrative hours spent by the Law Department, OEMC, and CPD in managing the exit. It also encompasses the chance costs of the RFI process and the eventual procurement of a replacement system, which likely require new installation fees.
“The city is paying a premium to leave, and then likely pay a premium to re-enter with a different vendor or the same vendor under a different guise in 2026. The absence of a concurrent replacement plan turned the exit into a financial.” , Municipal procurement analyst note on Chicago’s 2024 strategy.
While New York City chose to renew its contract in 2024, avoiding these decommissioning costs, it did so by accepting the vendor’s pricing power. Chicago’s choice to exit exposed the friction costs of decoupling from a proprietary surveillance monopoly. The removal of the sensors is the final physical manifestation of a $50 million experiment that ended not with a direct transition, with a costly, labor-intensive of a city-wide dragnet.
