This product would notify dispatchers in real time when an officer’s gun is taken out of its holster and when it’s fired. It can also track where the gun is located and in what direction it was fired. 2 counties in California already testing this product!
Details:
http://www.etsow.com/2014/10/silicon-valley-startup-unveils.html
All cops should have this gun standard, with body cams as well.