Chez, he assaulted you, right? It's against the law. It doesn't matter whether you want him prosecuted or not, the law says you mustn't assault others and you will be charged and tried if you do. If he's got a defence to the charge (self-defence for instance), he should tell the court, that's what it's there for, andthe court will decide whether it's a resonable explanation or not. (Just wanting you out of his face will almost certainly not be a resonable defence.) But the matter's basically out of your hands. Society is prosecuting him for behaviour which is illegal.