Reda Hassaine, an Algerian mole who has penetrated radical Islamist circles in London, goes to Scotland Yard and tells the British police that he has vital information for the anti-terrorist branch. Hassaine had previously informed on Islamist extremists in London for Algerian and French services, but has just been fired by the French (see Early 1995 and November 4, 1998). He speaks to two officers with the Metropolitan Police’s Special Branch about his work for the French, whom he had helped monitor leading extremist Abu Hamza al-Masri and Algerian terrorists living in London. Although most of Special Branch’s officers focus on Irish terrorism, they decide to hire Hassaine. The work is “frequently frustrating,” and only lasts for six months, after which control of Hassaine is passed to Britain’s domestic intelligence service, MI5 (see (May 1999)). After it is decided that Hassaine will leave the service of Special Branch and be transferred to MI5, Special Branch asks him to sign a letter saying that he is aware he will go to jail if he talks to anyone about his relationship with them, and if he is arrested by police, he will not be protected by immunity from prosecution. However, Hassaine is angry at this and refuses to sign. [O’Neill and McGrory, 2006, pp. 137-8]