High-tech police tool pinpoints where a gun is fired - USATODAY.com

High-tech police tool pinpoints where a gun is fired - USATODAY.com: "High-tech police tool pinpoints where a gun is fired

By Ben Arnoldy, The Christian Science Monitor
BOSTON — Even the best police gumshoe can go in circles chasing down a reported gunshot. Was the sound echoing from another direction? Was it just a firecracker? Sorting it out takes precious minutes – especially if a victim lies wounded, or a criminal is slipping away.

Enter gunshot detection technology.

Sixteen cities across the country have installed ShotSpotter, a system of rooftop listening devices that triangulates the origin of gunshots and pinpoints, in seconds, the location on a map. This week, Boston introduces a plan to spend $1.5 million on the system."