You can't set traps for people or where you "know" people may be. Now if a person goes where only animals goes and steps in a trap. I would post warning signs about traps where people would come and go like the gates. So if the law shows up you point out the warning signs at every entrance and that the traps were placed out of any people traffic. I personally would not use a trap. I would just have someone take my truck and wait. Or get a camera system that texts me when there is movement. Then catch them myself and use "force required" to hold them until law enforcement arrived
Plus they already shot your pigs so you better consider them armed
