Ingram moved to England in the summer of 1984 for personal reasons and continued to work in the field counter terrorism, which included a 6 month tour of duty in Belize to monitor developments in Sandinista Nicaragua.
Ingram also described how FRU operators were granted special privileges in the course of their work, such as the power to overrule senior officers in ordering an area to be cleared of regular security force patrols or by requesting immediate helicopter cover.
[4] In late November 1999, The Sunday Times published an article where Ingram accused FRU operators of being responsible for an arson attack on offices occupied by the Stevens Inquiry team at RUC Headquarters in Carrickfergus in 1990, which was an apparent effort to destroy evidence of crimes committed by one of its double agents (allegedly Brian Nelson).
However, to protect the agents cover, the FRU decided to allow the attack to proceed without attempting to thwart it, which resulted in the death of Queen's Regiment Private Neil Clarke after being shot in the head in Derry on Easter Monday 1984.
In the book, Ingram reasserted his claim that a senior IRA member named Freddie Scappaticci, who once headed its Internal Security Unit, was the British government's highest-ranking agent, known by the codename "Stakeknife".
[20] In later years, Ingram gave evidence to the Smithwick Tribunal, in which he claimed to have previously reviewed confidential British intelligence documents that identified Garda Owen Corrigan as a double agent for the IRA.
Ingram further alleged that his superior officer told him that Garda Owen Corrigan's contact for handing over information to the IRA was a covert double agent named "Stakeknife" (a.k.a Freddie Scappaticci).