He started work as a bouncer in East London, where he became involved with Pat Tate and Tony Tucker, both of whom worked a large scale dealers in ecstasy during the rave era in the late 1980's.

Three of the gang, Pat Tate, Tony Tucker and Craig Rolfe, Would eventually meet an abrupt and bloody end in December 1995, when they were blasted to death in a Range Rover on a farm track in Rettendon known as the Triple Rettendon Murders.

In 2003 he wrote a memoir about his criminal exploits entitled Muscle. In 2007 a film based on the book was released entitled Rise of the Footsoldier starring Ricci Harnett as Leach.