Not sure what the law says in the US but in Canada they can check the video if they have resonable suspicion it will show something incriminating. For instance guy gets pulled over for dangerous driving and is wearing a helmet cam. Under Canadian/British law you can only claim unfair search and seizure and sue for it they don't find anything. If they found incriminating evidence then they obviously had a reasonable suspicion to search your bike or car.
Last edited by twowheels; 01-31-2016 at 02:15 AM.