The blogger at A Girl And Her Bike, who happens to be a cop, describes an off-duty assault and arrest:
[L]et me explain something to you about a police badge. It doesn't grant you super powers. It's simply a piece of tin embedded with a number. It's not magical. It will not stop bullets. It will not make people do what you want. It will not make you win a fight. I have plenty of friends that always seem to think that because I'm a police officer, I am impervious to assault, robbery & bullets and that I never, ever have to worry about these things. This is not true. If anything, I am more vulnerable. Because instead of just being your average girl, I'm a threat. I live in the fear that should I ever be the victim of a robbery, the criminals will discover my badge and decide they can't risk me living and kill me. This actually happened to a friend of mine who was shot during a robbery when they saw his badge. He lived to talk about it, thankfully–but its a very real and very possible fear.
The Dish 