The technology uses a system of microphones to help pinpoint the source of shootings. Since the system was introduced in January, Denver officers have tracked more than 1,400 gunshots and arrested 29 crime suspects.
But police won't say where exactly in the city they're using the system – only that they’re focused on areas with recurring gun violence. Police Capt. Steven Carter says though shot-spotter is tripling in size, it won't cover all of Denver.
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