I didn't say that. If they are pursuing suspected killers they give them a chance to surrender. If they refuse they do what needs to be done. If the actions you like so much were allowed then police would use them all the time. They do not because they would go to jail for doing such a thing now. Yes, there are preemptive strikes. The military does that and not law enforcement. I really hope you are trolling and don't actually believe what you are saying here. I'm not wasting my time arguing with you any more.