How Birmingham's gunshot sensor system pinpoints location
A network of sensors which can help pinpoint exactly where a gun is fired from has been rolled out in Birmingham.
West Midlands Police say the "Shotspotter" technology, widely used in the US, will help reduce gun crime and could potentially save lives.
Inspector Greg Bates explained how the sensors, triggered by loud sounds, connect to a mapping system to show where the noise has come from.
09 Dec 2010