I went to jail for a crime I wasn't guilty of simply because some rogue police decided to commit a raft of felonies to try and gather evidence against me. When I put that to the judge he told me that "the police are allowed to commit crimes to gather evidence."
I tried going to the prosecutor with it and they will just laugh you out of the building. It's not a crime if you can't get the prosecutor to prosecute it. And the prosecutor's office almost never brings criminal cases to court on their own, they rely on the police for 99% of their work. If they went around prosecuting the police they wouldn't get any more cases and they would put themselves out of business.