So my brother witnessed some drunk fool throwing bottles at cars and phoned the police and made a statement. He made the officers aware that he didn't want to go to court as he hates them and its an unpleasant experience. He got a letter through the post a few days ago to say he had to go to court as he is the only witness. He has been told he cannot refuse because of him being the only one. What can he do he really doesn't want to go?