Or just who they don’t like/want to see put away. How many times cops focus on one person because they incorrectly assume they’re the guilty person, so they keep them in interrogation for 15hrs, emotionally and physically abuse them, threaten everything they have and their entire life, lie, manipulate, and just completely wear the person down until they falsely confess? It’s a grossly common problem. And then once they’re in the death trap maze that is the legal system, their life is basically ruined. But those cops get a pat on the back and they move on with their lives. While an innocent person rots away