Internal Security Unit: Difference between revisions

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The Internal Security Unit (ISU) was the name given to a counter intelligence and interrogation unit that operated within the former paramilitary organisation the Provisional Irish Republican Army (IRA). This unit was often referred to as the Nutting Squad.

While the IRA was a secretive, paramilitary organisation, the unit is thought to have had jurisdiction over both Northern and Southern Command of the IRA, (encompassing the whole of Ireland), and to have been directly attached to IRA General Headquarters (GHQ).

Duties of the ISU

The group was believed to have had a number of briefs:

Security and character vetting of new recruits to the IRA,
Collecting and collating material on failed and compromised IRA operations,
Collecting and collating material on suspect or compromised individuals (informers),
Interrogation and debriefing of suspects and compromised individuals,
Carrying out executions of those judged guilty by IRA courts martial.

The ISU was believed to have unlimited access to the members, apparatus, and resources of the IRA in carrying out its duties. Its remit could not be countermanded except by order of the Army Council.

Depositions obtained as part of its operation would ideally be noted on paper, and if possible recorded for the purposes of propaganda.

Examples of ISU activity

Debriefing of IRA volunteers following their detention by security forces operating in Northern Ireland. These interviews would take place to discover if a volunteer had flipped and decided to betray information or secrets of the organisation. They would also take place in the event of an operation, weapons cache, or unit being exposed to danger or uncovered.
Involvement in the Court Martial process as detailed in the IRA manual, The Green Book.
The membership of the IRA and wider republican community are expected to comply with requests for information made by the ISU. This information then being used to build or demolish accusations made against an IRA volunteer.

Further information/sources

Ingram, Martin with Harkin, Greg "Stakeknife". Britain's secret agents in Ireland." O'Brien Press, 2004.

External links

"It's time ordinary republicans stopped being led like sheep" - Ingram interview with the Sunday Tribune, 19 February 2006.
Lengthy Interview given by Martin Ingram on Radio Free Eireann describing his FRU activities. NOTE, the interview begins twenty-five minutes in.

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 ==Examples of ISU activity==
-*Debriefing of IRA members [or [[Volunteer (Irish republican)|volunteer]]s] following their detention by security forces operating in Northern Ireland. These interviews would take place to discover if a volunteer had 'flipped' (informed) and decided to betray information or secrets of the organisation.  They would also take place in the event of an operation, weapons cache, or unit being exposed to danger or uncovered.
+*Debriefing of IRA [[Volunteer (Irish republican)|volunteer]]s following their detention by security forces operating in Northern Ireland. These interviews would take place to discover if a volunteer had [[Flip (informer)|flipped]] and decided to betray information or secrets of the organisation.  They would also take place in the event of an operation, weapons cache, or unit being exposed to danger or uncovered.
 *Involvement in the Court Martial process as detailed in the IRA manual, [[The Green Book (IRA training manual)|The Green Book]].
 *The membership of the IRA and wider republican community are expected to comply with requests for information made by the ISU.  This information then being used to build or demolish accusations made against an IRA volunteer.