Shooting is obviously deadly force, which is usually unreasonable in most situations. There are other ways to deal with this - not allowing cops to carry guns on their person (kept in cars, with alarms and paperwork each time they are removed, plus automatic backup, etc) seems to help people think twice before entering a situation. In addition, you can have them talk to recovering gunshot victims, show graphic gun damage before they are out in the field, and other such things.

Invasive searches, however, I fully agree with. Even at a lesser scale, standing there naked in front of your fellow workers getting your anus probed correctly is surely going to be memorable. I would fully support them using each other for training and proper procedure.

Shoot them with beanbags instead. You'll live with a hell of a bruise and a memory you won't soon forget.

Obviously you won't do anything that leaves actual lasting harm. Let's not get silly here.

They should be shot at before they're allowed to shoot anyone, for sure.