This is how cops are in real life. It's rare for TV cops even on edgier shows to be this bad.
brian j.i got mugged at shotgun point. the cops arrested the wrong guy, hustled me out of court at the hearing when i said ”that’s not the guy,” told me “you didn’t see him,” made me do a lineup at the prison and when i said “that’s the guy i saw in court, still not him” told me “it’s OK, he’s a bad person”