Is this legal?

[bighead]

I took my game cam down and suprise there was a pi w a videocam but then bigger suprise a second pi behind him w/ a pistol drawn in the air?I know the agency they are woking for is out of erie but am not sure of wich agency . They where hired by ****edited by admin*** law firm out of butler.Is this legal for them to sit in my back yard w/ a gun drawn?what extreme are they going to go to???The property they are on is even posted.I already went for an IME and my first trial was cancelled.Has anyone had an experience like this?What are they going to do next???