Nah they won't allow it, especially not if he's been under investigation by the police. They wouldn't risk a repeat or a big blow out. Especially as Hazel did say she had felt in danger, even if she was lying, from what we saw and the fact she said that Big brother would be seen as irresponsible for letting him back in.
I do, however, think SOMEONE might go back in.....and I think the housemates will have to choose who....maybe lol