Is murder a good reason to fire someone? Even if it results in a lawsuit and you need to pay over 1 million in damages? This is not the case if you are working for the Police. Thanks to the system is it almost impossible to hold Police employees accountable. Due to arbitrage can they simply get their job back. This is partly due to the system. When you are doing negotiations with the unions the arbitrage system is a cheap thing. You will give it in exchange for a lower rise in the, already extraordinary, salary.
Those arbitrage systems are governed by labor law and regulation. So not as criminal law. So you murdered someone and the question is if you are going to get your job back. The question if murder is okay will not be addressed. Those who are going to make the call if a Police agent can return to work are likely coming from the union. People who are not known for doing the best and good for society.
How is the public interest served by not holding Police agents accountable? What makes that the arbitrage decisions are going to be critical to the police powered economy? There is a complete industry around this. All to keep the party going for the police.
But it becomes even worse. The arbitrage commission is set up in such a way that your own rights do not count. The police economy will have to say you have certain rights. There is a good reason why we have individual rights to protect us. To protect the people against the government and the police. This is, of course, not something that they like. Especially in a crisis, those rights are crucial.