Link to Guardian piece quoted by 999
Reaf it all, and remember the bits not in quotes are not quotes.
http://www.guardian.co.uk/commentisfree/2011/jan/07/grooming-racialising-crime-tradition

I find no source for the 80% figure attributed to Engage.
Leeds Telegraph says,"Voluntary organisation CROP teamed up with Operation Engage team as it works to end the sexual exploitation of children and young people by pimps and traffickers.

Vulnerable parents are helped by the group once a referral has been made to the Engage team."

CROP is Wilmer's group.
All perpetrators BPs.