How do you define a bad cop? I was just at a camp out of that was mostly cops. After many beers and a lot of whiskey the campfire stories were revealing.
There were many stories of guns, cash, drugs, and jewelry that never quite made it to the evidence room. It was kind of a bragging session. They feel entitled to steal these things for themselves. Maybe all cops don't do it....but they are ALL aware of it and do nothing to stop it.
I won't even get into to the the racist stuff.