I can see where you're coming from, but think riot geared police/armed response already play that role. It would be a preferable step to actually getting the military involved though.It would be a way of separating the dirty work from the community-friendly attitude that the plod are currently obliged to provide. Any nasty stuff could be handled by an organisation that aren't expected to go in with a soft touch, whereas at the moment everyone seems to think that the police have no right to use force.