ShotSpotter, aka SoundThinking, detects gunshots by sound vibration technology, according to AI summary. More below:
ShotSpotter (now branded as SoundThinking) is an acoustic gunshot detection technology used by over 130 police departments to instantly alert law enforcement to gunfire.
Its sensors triangulate the sound of muzzle blasts and relay location data to dispatchers in under 60 seconds, often aiding in life-saving medical response and evidence collection. [1, 2, 3]
How It Works
- Sensors:
A network of acoustic sensors is placed on buildings and utility poles in designated coverage areas.
- Detection:
When a loud impulsive sound like a gunshot occurs, sensors capture the audio and send it to a cloud-based system.
- Verification:
Audio is reviewed by trained SoundThinking employees at incident centers who verify the sound as gunfire, then dispatch police to the coordinates. [1, 2]
Criticisms and Controversies
While proponents point to faster response times and the ability to detect un-called shootings, the technology has faced major scrutiny: [1, 2]
- Accuracy & False Alarms:
Independent audits have raised questions about false positives triggered by fireworks or construction. [1, 2, 3]
- Fourth Amendment Concerns:
Civil rights groups like the ACLU argue that the technology can lead to pretextual police stops in marginalized neighborhoods and lacks sufficient privacy protections. [1, 2]
- City Cancellations:
Due to these debates over efficacy and civil liberties, several major municipalities have ended or debated ending their contracts. For example, Chicago’s mayor terminated the city’s use of the technology, prompting local political battles and ballot referendums regarding its potential reinstatement. [1, 2]