TM7,
As strange as it seems, the rules for a cop firing a gun when I was growing up did have a very formal protocol around it, and I knew a lot of cops. Most of the adult men I knew were cops, just sayin for context. If a cop fire a gun or even drew a gun on or off duty, there was a formal inquiry. But when there was a dog involved, the rules seemed to be different. There may have been an inquiry, but they were just formalities in those cases. Maybe that was just at a special point in time, but it really did work that way. Probably because there were a lot of pest animals around, like alligators and rattlesnakes, and rabid racoons. So place was probably a factor too.