Can I get the police to take my brother out of the house and keep him out?

Call the police, but in order to get him out of the house and instate a restraining order, you or whoever he is abusing would have to press charges. If he is violent because he is on drugs or is mentally unstable, the police may be able to pink slip him and take him to a psychiatric unit. Either way, no one should have to live in a violent situation, call the police.