People wildly underestimate the rate at which cops commit crimes. Not just murder, which deservedly gets the lions share of the publics attention - drugs, theft, extortion, sex-trafficking, if you can think of a crime, there is probably a cop in your community who's done it.

The top narcotics squad for Brooklyn was robbing people and running a prostitution ring (I'm amazed they got busted). The city LITERALLY PUT UP ADS TELLING COPS NOT TO ROB PEOPLE OR ACCEPT BRIBES. This was ~2 years ago.