Barr's interview with Maria, there were a point he made, which would disqualify any law enforcement individual of accountability.
He gave the excuse that there should be 'qualified immunity' for law enforcement because few would sign up for policing. This is why no accountability, just like prosecutorial immunity. No where in the Constitution is this mentioned.
Government makes laws to protect themselves from you and me, which is the complete opposite of the Constitution which is to protect us from them.