America’s new policing tech isn’t cutting crime
That evidence was from Shotspotter, an “acoustic gunfire-detection" system supplied by SoundThinking, a firm based in California. Shotspotter automatically recognises and analyses the sound of gunshots from a network of microphones spread across cities—Chicago has by far the largest network in America. By triangulating the recordings it can, in theory, pinpoint where a gun has been fired. The idea is that this will help police officers respond more quickly to shootings, and find out about shootings that go…