Is it possible to get a restraining order, or order of protection from a court where you are? If so, that would be a first step, and if this happens, you are probably on more solid legal ground if you either call the police, or act in a pre-emptive way to prevent the person from causing more harm to others.
Talking, asking them to leave, as the police are on the way at that moment, with pepper and a weapon both in hand, would be a first step in a case of a known dangerous person returning to a scene or in the presence of a victim of a previous attack. If they became violent at that pint, you would have to choose what level of defense was appropriate to counter.
I would also keep a couple of cheap disposable cameras on hand easily available to take a picture of the person if they returned. It's much easier to convince the police and court that the person was there when you have a picture of them.
|