Citation, please.
There aint no citation. You have to experience it first hand. You have to have relatives that are cops and corrections officers for instance. You have to listen to an ex LAPD brag about shooting out street lights so that his friends in the public utilities would get bonus work.
How many police brutality videos do you need to watch? How many videos of cops bullshitting citizens about the law? What kind of fairytale world do you live in man?