[TChris]

Having GPS capable of calculating your speed and producing documentation would pretty much be the only way, right? How many people have that in their cars right now?

More than you would think. Lots of new cars have a black box which does this already. Every GPS receiver I know of will also record the maximum speed since being reset. That, plus sworn testimony from witnesses who were in the vehicle at the time, would be pretty persuasive in court.

The point is that these problems would be absolutely no different from the current situation. Who's to say the officer isn't lying about what the radar said? It always comes down to his testimony anyway, whether there's a radar involved or only his estimate.

[TankerKC]

Every GPS receiver I know of will also record the maximum speed since being reset. That, plus sworn testimony from witnesses who were in the vehicle at the time, would be pretty persuasive in court.

All to overcome the opinion of one cop. That's a rigged system and you must know it, my FRiend.

[fr_freak]

The point is that these problems would be absolutely no different from the current situation. Who's to say the officer isn't lying about what the radar said? It always comes down to his testimony anyway, whether there's a radar involved or only his estimate.

True, but I wasn't really concerned about the cases where a cop would lie about speeding (I suppose I was giving cops the benefit of the doubt in that most wouldn't purposely lie about speeding). I was thinking about the much higher rate of mistakes that would occur with eyeballs only.