Well now that we know that the locks is not yours, you will not get any help with it. I'm very sorry to say like this, but this is how things are done around here. If it ain't yours, you don't touch it.
Get yourself some padlocks from a hardware store or better yet, get a repinnable door lock cylinder and use that for picking

This is a very nice hobby and educating, but you will have to walk the thin line or you will get in trouble.