I wouldn’t let these idiots anywhere near a real gun.
You do bring up a good point. With guns not part of the English culture; the police who carry will need some basic training. A 4-5 day course should get their muscle memory dialed in and the need to protect their sidearm at all times from anyone. No more daydreaming either. It's head on a swivel time; on duty or not.
I wonder how long it will take them to realize all law-abiding citizens should have the same right to carry; at least at home.