How about just arresting the suspects when they are out on the street where you can simply walk up behind them and grab them.
Excellent suggestion. That is where intelligence comes in. They have to go to the local mini-market for a pack of smokes and can of Colt 45 at some point, don't they?
The trouble is, they don't get to play "Commando" and shoot up the place, so it will never happen.