Seren has a good point. Perhaps he might not fit your head's idea of abusive, but there has been violence before. Whatever happened this time was bad enough for your to call the police - that has to tell you something!
Honestly, the moment I read the title of your post, the thought that crossed my mind was 'best place for him, then'. Don't think too far ahead, I hope you gave your statement. The courts's judgement process may well help you work through what you want out of this. For now, just get this incident logged properly, ok?
Sending you a big internet hug!