sorry to hear your story. believe i am on your side. i am chinese.....but....to be honest i found your story is a little bit strang, at least your are not totally telling the truth.
i don't care if your husband was working there or not, but i don't think a real police can beat a chinese in the public for no reason... did your husband fight back...or try to protect himself...or he was angry and did something stupid? NO matter what he did... you should not admit it at all...find out witness to prove he is totally innocent... no matter what the truth is...people only listen to evidence,,,,good luck