I am thinking about the future. If they cannot stay within what few moral laws we hold paramount, they have no business wearing a badge. You cannot have officers with advantage in the courts, setting standard on the street and occasionally exercising summary judgement on unarmed citizens because the rules and customs make it hard to get rid of them. Again and again, they do not police their own, but protect their own, in situations that would be indefensible if they were civilians making the same choices in protection of the public, themselves or another. They are not above the citizens, or at least were not intended to be, especially not intended to be above the laws that govern everybody else. Still the hardest criminal to prosecute is often a dirty or brutal cop.