I noticed this thread in the Bipolar discussion area costello. It doesn't really have any answers but perhaps you will find it comforting to know that other parents are struggling with similar issues and they're not sure of the best way to deal with them either.
It might also be reassuring to know that most of the respondants also feel that calling the police is the most appropriate recourse:
victim of violent outbusts--help
I hope you get some answers today and a bit more sleep.
~ Namaste