Ok. I'm current society you call police, in next 10 minutes you get to murdered. In an hour or 2 police comes and of your murderers were bad then they left evidence that makes them go to prison financed from other people taxes. You are dead.
It sucks that someone got murderer by police arresting the culprit and putting them into a publicly funded prison seems largely ideal plus or minus your view of the death penalty?
Governance is hard. And has problems. That doesn’t mean the opposite of governance is the answer.