[mindslight]

Yes, the entire spectrum of fiat crimes such as "the war on drugs". Without the existence of these, or without the will to aggressively enforce them, large swaths of crime would simply disappear. The disastrous results also spill over and create real crime, as people are unable resolve commercial disputes through the courts, but have to DIY.

At any rate, even if general society is more violent, that is not a justification for supposed police to add to the mayhem. When police officers are not bound by the law they purport to uphold, then they are actually just another gang.