Xiaoling, please read

Your way of handling it is fine. However, don't be afraid to call police if he hits you or your daughter again. The case won't damage both of your green card application since it was turned in already. He just has to report it when he applies for US citizenship and looking for a govenment or school job. However, in both cases, as long as he is honest, they will approve his application. If he lies of not having committed a crime, then for sure his citizenship will be disapproved. I'm not asking you to put him in jail. It's not our purpose. Your goal is to help him realize he is wrong in abusing his wife and children. He won't know it until he is taught a lesson. So that's why you really need to call police and tell them the truth when they come. He might be able to learn from it and behave better. Or maybe he is hopeless. But anyway, don't worry too much about him or others. Think about you and your children. Remember what happed to the popular poet, Gu Cheng's wife? He killed her with an axe. Tolerance will just enable him to be more violent. Also, don't think about going back to China. Stay here. At least the police can help you. In China it's another story. Take care.