Find a reason to get him to your house without her. Then, when he arrives, great him with a baseball bat. If, he's really big I would stick my handgun in his face, unloaded of course, and tell him if he EVER lays a hand on her again you won't hesitate to pull the trigger. Well, that's what I would do. The cops around here is like the Dukes Of Hazard. They would slap his wrists and give him a fine. Then proceed to make her feel like an idiot, like it was her fault in the first place.Most people don't press charges because it's useless. We just handle it ourselves.