[John H K]

How, pray tell, do you get the several million of these undoubtedly expensive devices required to cover the several hundred square miles of the DC Metro Area? Even if you're just trying to cover all the craft stores, gas stations, and schools?

[kcat]

John, I have no idea what these things are or how they work. I was just thinking if a forinsics person was talking about this device that it could be used soon after the shooting to determine direction. That does sound far fetched that something could be used for detection after a time.