QUINCY, Wash. -

Quincy police say they're the first in the Northwest to test a system that detects and locates gunshots.

The Wenatchee World reports the city council approved a one-year $130,000 contract to use the ShotSpotter Flex system for a year. Officials are concerned about gang violence and hope it improves police response.

The system uses sensors to pick up the sound of a gunshot. Computers triangulate the location within a minute and give police a location within 15 feet of where a shot was fired.