Antisocial Behaviour Mr. Flello 16. To ask the Secretary of State for the Home Department what assessment she has made of the effectiveness of the mechanisms and powers used to reduce levels of anti-social behaviour. Mr. Alan Campbell Independent reports confirm the effectiveness of ASB tools and powers, including the National Audit Office report that two thirds of people stop committing ASB after a single intervention, rising to nine out of 10 after three. The British Crime Survey and Audit Commission Survey found that perceptions of ASB as a problem fell between 2003 and 2006.