That's the fun bit about that thin blue line, the moment you are perceived to be on the other side of it, you become the enemy of the police. It cracks me up when non-cops display the blue flag thinking it makes them part of the blue club. It doesn't. Cops will collude to kill you the moment they think you can harm them.
RE: Dept Claims Cop Killed Himself, While Chasing Suspect, Days Before Testifying Against Dirty Cops