Some thoughts on this: Will the people *believe* the electronic position data? Nope. When you are busted not only will you be frisked but you will also be bulk erased :-) (to get TC's DAT tape!) The technology to fabricate video evidence is there is it not? There was a relatively recent sad case of two officers that had a video camera installed in their patrol car. They had pulled over a speeding car. While obtaining the license the occupants of the car murdered the policemen and the *entire* scene was obtained on video tape. When the tape was later reviewed, searching for a clue as to what happened, the individual had to watch the officers slowly die - all captured on video. It is possible that they might have been saved had this been real-time video rather than taped. Consider the next level here folks? Will just having archived knowledge of where certain people are be adequate? Will there not ultimately be a call for real time monitoring of these officers? Will that be something that would be cool with them? Another great idea would be anonymous real-time monitoring of vital signs along with position data. Auto-911 if you will. We know somebody at this corner had a heart attack 5 minutes ago where is he? Cheers mark.h