I would also worry about appearing to be a fake cop. When I was in the US last month, I was in the mall with my kids who I thought, at first, was a Deputy. The closer I got, the more I realized that he was not but was sure as hell trying to look like one. Lots of cop stuff on his belt, uniform type shirt and he was chatting up the girls at the shops. There was an instinctive creep factor that I had (I used to be a cop) and I found one of the real deputies and pointed him out. Not sure what happened but the "almost cop" look sure put him on the radar screen of the real LEOs and myself. Just a thought.