It's very similar to the immunities we just discussed. These immunities are for a particular class of enforcement. It's for pre-clearance officers, as I think Mr. Noormohamed mentioned. I can't say too much about them, but they're a class of peace officers who have duties specific to ports of entry.
As I understand it, there's a pre-clearance process, of which they are a part. They do have limited and geographically specific peace officer authority. If ever they're called upon to deal with, let's say, the context of smuggling or the like, they would be immune from dealing with firearm parts, as a police officer would, let's say, in more domestic circumstances away from a port of entry.