You clearly have no understanding of how the police work in European countries!
https://en.wikipedia.org/wiki/List_of_paramilitary_organizat...
For The Netherlands, this includes two: KMar (who also secure airport like Schiphol) and DSI. It does not include for example regional AT (arrestatieteam, the equiv of a SWAT team).
Every time a Dutch police officer uses their gun on the field (so exercise is excluded), there's an internal investigation, by default. If that'd happen in USA, you'd have a huge dept. of internal affairs, lol.