According to the local WCO I dealt with this past season, there is nothing he would be able to do in that situation. He said it would be impossible to prove that whatever that skinned animal is didn't die there naturally.
Even though it's still illegal to trap there whether you put the bait there or not, he to me there was nothing he could do.
I called about two skinned beaver carcasses, a dead wild turkey, and two dead cats being used as exposed bait. He wouldn't even come look at it.