Anti-social behaviour covers everything from letting your garden become an eyesore to drug dealing or physical violence. For example:
Many criminal acts are also classed as anti-social behaviour - for example vandalism, drug dealing, abusive language and abusive behaviour. The council's anti-social behaviour unit will take action against the person committing such acts, but you should always contact the police first. Telephone 0845 6060606 to report any crime to the police, but if the crime is in progress or there is a danger to someone’s life, ring 999."
Why the hell is graffiti thrown in with racist and homophobic abuse? How are the two even comparable? It is a disservice to people who have been racially or homophobically abused to put graffiti on a par with those crimes. Or maybe the council are just muppets, that could be possible too..