In other parts of the world the police get a call saying there is an armed individual threatening to hurt hostages and they send a single unarmed officer to knock on the door?
You see not every police dept in the world has removed all investigation from the responsibility of their police forces..
But more importantly, with an order of magnitude rarer killings, there is much less of a “we’re at war with the bad guys” culture. In some countries discharging a weapon brings automatic suspension for the investigation, even if nobody gets hurt. Cops simply don’t tend get trigger happy in this environment.
...(assuming EU) apart from hosting some of the deadliest wars in modern history.