John Stevens Events (3) January 20, 2003: Police Raid on Finsbury Park Mosque; Weapons and Chemical Weapons Suits Are Found 2003-01-20 January 24, 2003: Abu Hamza Begins Preaching outside Closed Mosque 2003-01-24 Summer 1998 and After: British Intelligence Informer Abu Hamza Runs ‘Al-Qaeda Guest House in London’