I ran into 4 trespassers (2 adults - 2 teenagers) this weekend. These guys had keys to my gate. I asked them how they got them. In seem that one of the adult has a "universal blank"???? I think that is what he called it. Anyway, he inserts the blank into the lock and somehow from that is able to make a key.

Is this possible? Anyone out there with locksmithing knowledge know what these guys are talking about?

The locks on these gates are large heavy-duty American-made Locks. I order them specifically from a locksmith. The locks costs me about $40 apiece and are supposedly bolt-cutter proof. The key that goes to the lock is a specific blank that you can't just go down to Lowes or your local hardware store and get a copy of the key. In fact the key is stamped "Do Not Copy". I give each member only one key.

I'm currently setting up a meeting with the local game warden to file an official complaint and would like to go into this meeting knowing what these guys are using.

Can anyone help?