Intelligence provided by an IRA informer known as Infliction was regarded as of “mixed reliability”, a senior MI5 officer claimed today.

DISGRACED former MI5 officer David Shayler claimed yesterday that he was told an IRA informer who alleged Sinn Féin’s Martin McGuinness told him he fired the first shot on Bloody Sunday was a “bullshitter”.

Disgraced former MI5 officer David Shayler claimed today he was told that an IRA informer who alleged Sinn Fein’s Martin McGuinness told him he fired the first shot on Bloody Sunday was a “bullshitter”.

A former Army intelligence officer who claims he saw documents which show Martin McGuinness did not open fire on Bloody Sunday is to be screened while giving evidence to the Saville Inquiry.

Sein Fein says doubts cast by a former MI5 officer on claims that Martin McGuinness fired a shot before the Bloody Sunday massacre prove that the allegations are bogus.