Vimes nodded. "Training's important, that's true, and so're about a thousand other things, but to start with you've got to have the manpower. People who won't turn tail at the first sign of trouble, you've got to be able to convince people that if it came down to a fight the police would come out on top."

He stepped down from the stage, crossing to Robin with a curious eye. "I think, unless I'm wrong, that you know how to fight? You've got the right build for it."