Chicago Police Superintendent Garry McCarthy said today the city is using acoustic sensors to detect and locate gunshots as a way to fight violence in two crime-ridden areas.
The sensors, installed Sept. 1, are positioned in two 1.5-square-mile areas bordering the Englewood, Chicago Lawn, Harrison and Grand Crossing police districts. The technology already has helped police arrest two felons and recover two weapons, McCarthy said.
The one-year contract with ShotSpotter for the sensors costs about $200,000. McCarthy said the program will likely expand, though he did not provide specifics.
ShotSpotter sensors can differentiate gunshot sounds from fireworks, car backfires and other noises, as well as filter out conversations, McCarthy said.