in Spycatcher that Gouzenko himself deduced later that his interviewer might have been a Soviet double agent and was probably afraid that Gouzenko might recognize him from case photos that Gouzenko might have seen in KGB or GRU files, which would explain why Hollis was disguised. According to Wright, the FLUENCY Working Party, an inter-agency committee created to examine all the hitherto unsolved allegations about penetration of the British security apparatus, unanimously concluded, among other things, that Hollis was the likely individual for Gouzenko's "Elli" and Konstantin Volkov's "Acting Head" allegations. The committee chaired by Wright submitted its final report shortly after Hollis retired in late 1965 as MI5 Director-General, but investigation of Hollis was not authorized by his successor, Martin Furnival Jones, who nevertheless authorized the investigation of his deputy, Michael Hanley. A retired civil servant, Burke Trend, later Lord Trend, was summoned during the early 1970s to review the Hollis case. Trend studied the case for a year and concluded that the evidence was inconclusive for either convicting or clearing Hollis; this was announced in March 1981 by the Prime Minister, Margaret Thatcher. On the basis of his interviews with Sir Dennis Proctor and his friends, Wright also alleged in his book that Proctor, former Permanent Secretary at the Ministry of Power, was at the very least, by Proctor's own account, an unwitting source of secret information to the Soviets via his close friend and Soviet spy Guy Burgess, from whom he had kept no secrets which, in Proctor's opinion, obviated the necessity to recruit him. Wright's investigation was also focused on Labour prime minister Harold Wilson, suspicions about whom were initially triggered amongst the MI5 management by James Jesus Angleton, Deputy Director of Operations for Counterintelligence at the CIA. This occurred shortly after Wilson's appointment as prime minister in 1964. The MI5 investigation into Wilson's background, however, failed to produce any conclusive evidence. When Wright retired in 1976, Harold Wilson was again prime minister. Dame Stella Rimington, MI5 Director General from 1992 to 1996, who was serving in MI5 while Wright was still working there, wrote in 2001 that she believed that in a Panorama programme in 1988, Wright had retracted his allegation made in his book about the MI5 group of thirty officers who plotted to overthrow Wilson's government. She also criticised Wright who, according to her, by the time she knew him well was "a