Tara... the more paranoid he is the better. He will either get caught, get sloppy or move on. Try and leave things by his house with return address of WSP Sexual Assault Crimes Unit, Special Investigations, ..etc. His name and address of some sort of official Journal or official log magically appearing by his driveway will definitely make him wonder what the hell is going on...and his paranoia will take over and get the best of him. If he thinks people/police are after him, that will usually make him freak out or stop at least stop what he may or may not be up too. You can also ask power company and utility companies to come to his place and check on stuff. IE, if you think he is stealing power or cable or water, stuff like that. He won't like them coming by. Building inspectors and other officials, even the police/sheriff showing up once in a while will drive him nutz. You should call that stuff in when you hear it. If he is up to shady things, that will definitely make a lot of stress for him and hopefully detour him from doing this in your back yard. With any luck he picks up shop and moves to another county.