Sorta related to your topic:  I read in a book about deer huning where the author, as a young man had killed a nice buck.  He tagged it, field dressed it and went for help.  When he returned, there was a group of "hunters" posing for pictures with his deer.  Because they were outnumbered, he backed off and called a game warden.  The warden told him there wasn't a lot he could do - their word against his.  The warden then told him a little trick:  Cut the tongue from the deer and put it in a baggie to keep with you.  Now when you get the game warden, you have proof!