I had a cop tackleberry me about doing 90mph and driving reckless was his claim. I told him he is absolutely out of his mind. He continued with his claims. I said to him I'm not in the mood to argue today and pointed at the dashcam. He got ticked off returned to his vehicle and came back with a failure to use turn signal ticket. I still took it to court and he was a no show. Dashcams work.Wait until you're in an accident that's not your fault and the other person lies about what happened. Knowing someone who works in the insurance industry you'd be surprised how often dashcam footage is used to prove the other party is lying. The sad thing is that even when the person is proven to be lying they suffer no further consequences from it. They're just slapped with a 100% at fault and nothing more, even though they wasted everyones time spinning a story.