There is an HBO series starring Jon Bernthal, that reminds me of this case. It's a true story that took place in Chicago.Jon takes over for an already corrupt street-unit of cops, designed to take drugs and guns off of the streets. They are all corrupt though, taking kick-backs, robbing people at traffic stops, taking the cut off of every seizure that they make, and even covering up murders.
I didn't even know it was a true story until after the last episode, where they showed you who the actors were playing, and what happened to them after it all came crashing down. It was during the Chicago riots.
The Police Chief, the Mayor, The governor, the entire crime unit spanning years....
It was/is shocking how corrupt Chicago was.
Great mini-series.