So recently i had a friend who was arrested. He has a very bad reputation in my town, mainly because he has parties at his house and is a little wild. In general, there is little to no drug use in his house (unless you consider alcohol as a drug).

So he was arrested for "having a party where controlled substances were being used." The supposed party took place 2 months ago and there is absolutely no physical evidence to support this. The cops, when asked if they had a warrant for his arrest, could not show the warrant and said, "Do you think we carry around those things?"

Also, the cops have never shown up at his house and there has never been a noise complaint.

I live in a small town and it's plausible the cops are doing something wrong here. Does anyone know if this was harassment or in some way unlwaful for the police to do this to my friend?

Thanks