Replies

If an officer's estimates are that inaccurate, then he will lose cases in court and stop getting any convictions. Those officers soon find it difficult to find work.

How do you prove that the officers' estimates are incorrect? 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? For those that don't, if the nice officer says you were going 45 in a 35 zone, and you know you were only going, say, 39, how do you prove him wrong in court? From what I've seen, when it is Joe Citizen vs. cop in traffic court, cop wins EVERY time.

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.