i need some help on laser jammers. i'm tryin to get a handle on the whole concept. i know a little about radar detectors, but laser jammers are new to me and i'm tryin to figure them out and decide if i need one/want one. now a laser jammer works by jamming a laser gun a officer shoots at you so he can't get your speed right? so really theres no way of tellin how fast your goin? and if that is the case, why do i read about people saying to turn off your laser jammer and slow down when you know you've jammed it? and is it true that most laser jammers dont work? if so, why do people use them and rely on them? how do you even know if it is working? Lidar is fairly new to me also. i'm looking to gain as much information and knowledge as i can on the two, so if anyone could help me understand lidar and laser jammers, it would be much appreciated. thanks guys!