I belive he is refering to the "Anti-social Behaviour Act" of 2003
(
http://www.legislation.hmso.gov.uk/a...3/20030038.htm)
and the relevent bits are: "Part 6: The Enviroment"
under
"
Penalty notices for graffiti and fly-posting"
(http://www.legislation.hmso.gov.uk/a...0038--g.htm#43)
and also
"
Removal of graffiti"
(http://www.legislation.hmso.gov.uk/a...0038--g.htm#48)
-Chris