[consonants]

Look around the system that enables this behavior. The department itself, his peers, the judges he stands before regularly, the thin blue line, his constituency, and you'll see that even if the officers in question knew they didn't have legal impunity through their unions the same bullshit would happen with the same results.

The system of checks and balances ensures that its executors have covered their ass and their friends' asses before justice is 'served'.