ORIGINAL: Paul L Mohr
I think taping someone on the phone without their knowledge is illegal and inadmissible in a court, unless you have a warrant to do so. So it may not do you any good other than letting the police know your not making stuff up. And from what I can tell your not the type they would discount easily.
Sounds to me like you got things covered though, I would just suggest you let the land owner know what is going on but you probably already know that as well.
Good luck, let us know if anything comes of it. While there are a good share of nut jobs around most are just talk. Never hurts to be prepared though.
Paul
You can legally tape any phone conversation from a landline (home phone). It goes way back to how landline phone callsused to beconnected by operators who would be on the line, so individuals should not assume any confidentiality from such calls. Thus privacy issues go out the window and these types of calls are legal to record and are admissable in court. Recordings of cell phone calls on the other hand,are not admissable in court. However, I'm not sure on the legality of the actual taping of cell phone calls.
Either way, this is a messy situation. Like others have already said, make sure you post the property very well and be sure to talk to the property owner to make him aware of the situation...the legal authorities as well. Maybe the local game warden would be happy to keep an eye out near the property for these losers as well.