Jim Skardon
William James Skardon (1904–1987) - known as Jim Skardon - was a Special Branch officer who became an MI5 interrogator and head of "The Watchers" (physical surveillance teams). He was intimately involved with the investigation of the Cambridge Five and the interrogation of Klaus Fuchs. After rapidly and non-coercively eliciting a confession from Fuchs, Skardon acquired the reputation of a very skilful interrogator. However his own report of the Fuchs interrogation indicates that Fuchs — apparently in a condition of considerable mental stress — volunteered his entire confession with very little prompting. Peter Wright also claimed that the success of that  interrogation depended mainly on the detailed brief supplied to Skardon, plus the "listeners" who picked Fuchs' lies to pieces. Skardon's subsequent record in interrogations was considerably less successful, and his success with Fuchs led to these negative results being given too much credence. Some of Skardon's subsequent failures include: