If this had been done by anyone other than Police Officers we’d be watching the pundits on CNN talk about how badly we don’t need to allow civilians to be armed, after all the Police and the Military are much better trained. Ergo they are more trustworthy to handle firearms safely.
My experience has been that the worst offenders of the rules of firearms safety tend to be wearing a badge. That’s not to say you can’t have a badge and be one of the cognoscenti, just that it is uncommon.
Rule 1: All guns are always loaded
Rule 2: Never let the muzzle cover anything you are not prepared to destroy
Rule 3: Keep your finger off the trigger until your sights are on the target
Rule 4: Be sure of your target and what is beyond it