A top al-Qaeda operative known as Abu Doha arrives in London to take up a leading role in operations there. French intelligence chief Pierre de Bousquet de Florian will describe Abu Doha, an Algerian better known as “the Doctor,” as al-Qaeda’s main recruiting sergeant in Europe, adding that “it is not possible to over-emphasize his importance” because he is the “principal catalyst” for the establishment of a network of North African radicals across Britain, Europe, and North America. Abu Doha, who has already established a special section for North African trainees at the Khaldan training camp in Afghanistan, links up with Abu Hamza al-Masri, a local militant leader and radical imam who is an informer for the British authorities (see Early 1997). He bases himself at Abu Hamza’s mosque, Finsbury Park, where he unifies rival Algerian factions, increasing the flow of funds and recruits sent to the camps in Afghanistan. After he is captured (see February 2001), a British judge at an immigration appeals tribunal will say: “In Afghanistan he had held a senior position in the training camps organizing the passage of mujaheddin volunteers to and from those camps. He had a wide range of extremist Islamic contacts inside and outside [Britain] including links to individuals involved in terrorist operations. He was involved in a number of extremist agendas. By being in [Britain] he had brought cohesion to Algerian extremists based here and he had strengthened the existing links with individuals associated with the terrorist training facilities in Afghanistan and Pakistan.” [O’Neill and McGrory, 2006, pp. 116-117]