The Mayor of London, Boris Johnson is to attend a major conference on how to tackle gang violence in the capital .
Speakers include Kevin G. O'Connor, the Assistant Police Commissioner for New York City and the Metropolitan Police Commissioner Bernard Hogan-Howe.
Eight suspected priority gang members, aged between 16 and 24 years old, were arrested this morning, in a series of dawn raids.
Crack cocaine, a cannabis factory and an air pistol were just some of the items seized by Met officers at properties in Westminster and Brent.
Those being held are suspected of involvement in a series of crimes, including assault, robbery, drug supply and looting in the disorder last August.