Sorry, which law are you talking about? The Racial Offences (Karaoke) Act 2006?
LFN, I know you hate the Labour Party but people in all professions over-react and make poor decisions, including the police. The fact he wasn't charged means it sorted itself out. The laws against racial harassment are to make it illegal to yell racial insults at your neighbours, which I think is a pretty good thing, don't you?