I have caught a pair this year red handed. Caught others in the past and prosecuted. The only real solution is boots on the ground and letting your worst behavior surface when you catch them. Put up his pic at the local stores with a reward for ID and prosecution. I would bet the local game warden already knows him.
My best suggestion is put up a sign "Sasquatch trapping in progress, dangerous conditions, do not enter". That would alert them to booby traps and also that you are missing a few cards in the deck. People don't mess with crazy men!
