A system of gunshot-detecting microphones intended to help police quickly respond to possible crime scenes has been expanded to south Sacramento.
The Sacramento Police Department began using ShotSpotter technology in North Sacramento in 2015 in an effort to reduce violent crime, and the City Council last year authorized expansion of the system to south Sacramento.
The department selected an undisclosed 3-square-mile coverage area in south Sacramento, according to a Police Department news release. The system was installed over the past few months and is now operational.
A firearm produces a distinctive noise signature that enables the system to distinguish gunfire from similar sounds such as firecrackers, bottle rockets or car backfires, according to news release. The system instantly notifies officers of the location of gunfire with real-time data delivered to dispatch centers, patrol cars and smartphones. The instant alerts allow police and other emergency personnel to quickly respond to aid victims, collect evidence and apprehend offenders.
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When a gun is fired, ShotSpotter sensors in the coverage area are triggered, according to police. The ShotSpotter Software Review Center analyzes the data and can pinpoint a location within 25 feet. Dispatchers and officers in the field receive the information simultaneously , and dispatchers then coordinate the response using either ShotSpotter software or the 911 system.