It should be legal for, when any cop trying to do this, to assault and detain them. They're breaking the law, violating the constitution, destroying evidence, and committing fraud, all in one and what the hell are you supposed to do, call the police? I'd knock him the fuck out and make him prove in court that I didn't need to. Surprise, I needed to in order to preserve evidence of him committing a crime. You know, a citizen using force to prevent a crime from being committed...that thing that's completely legal in 50 states. OH THAT'S RIGHT police officers are magic and immune to the law and can go around making up their own laws. I forgot.