Ped making sudden movements at gun point

I wonder if anyone could make a mod where when you're holding a suspect at gunpoint, there's a chance they could pull out something from their pockets, most of the time it could be their phone to take pictures, wallets, or their badge or sometimes their gun. You can't take Ready or Not NPCs as example, sometimes they reach for something in their pockets when you shout at them. It'd be cool if there's a mod like this, it could also help train your awareness and trigger discipline or whatever people call it.