Earlier quoted context omitted.
If it's not prosecuted, it's defacto legal. What we really need in this country is a way to prosecute which bypasses the DA since this type of thing seems to be becoming more common.
We have a way. In most states the Attorney General can assign a prosecutor to pursue local corruption cases. The AG is an elected office accountable to voters.
If a DA comes out and says "hey, I'm investigating a racket that is put on by local cops" those local cops (and their union) will fight tooth and nail to remove that DA, no matter how effective their other investigations are. If that AG or DA is out of a job, and try to spill the beans, they can be threatened, or ignored outright by local media or other prosecutors who have legitimate reasons to not rock the boat.
Organized corruption begets more organized corruption.