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The Report of the Iraq Inquiry
21.  The Butler Review was established by Mr Blair in February 2004 to:
“investigate the intelligence coverage available in respect of WMD programmes in
countries of concern and on the global trade in WMD, taking into account what is
now known about these programmes;
“as part of this work, to investigate the accuracy of intelligence on Iraqi WMD up to
March 2003, and to examine any discrepancies between the intelligence gathered,
evaluated and used by the Government before the conflict, and between that
intelligence and what has been discovered by the Iraq Survey Group since the end
of the conflict; and to make recommendations to the Prime Minister for the future
on the gathering, evaluation and use of intelligence on WMD, in the light of the
difficulties of operating in countries of concern.”7
22.  The Butler Report stated that, in assessing the intelligence on Iraq’s nuclear,
biological, chemical and ballistic missile capabilities to establish whether there were
“any detectable systemic issues” which might have affected the JIC Assessments in the
period before March 2003 and whether Assessments made at the time of the 1990 to
1991 Gulf Conflict “had a lasting impact which was reflected in JIC Assessments made
in 2002 and 2003”, it had addressed “three broad questions”:
What was the quality of the intelligence and other evidence, and the
assessments made of it, about the strategic intent of the Iraqi regime to pursue
... programmes in contravention of its obligations under ... resolution 687?
What was the quality of the intelligence or other evidence, and the assessments
made of it, about Iraq seeking to sustain and develop its indigenous knowledge,
skills and materiel base which would provide it with a ‘break-out’ capability ...?
What was the quality of the intelligence or other evidence, and the assessments
made of it, about Iraqi production or possession of prohibited ... agents and
weapons ...?”8
23.  Sir John Chilcot was a member of the Butler Review.
24.  The Iraq Inquiry has drawn in its work on both the evidence offered to those
Inquiries, where available, and their analyses and conclusions, but the judgements in
this Report are the Inquiry’s own.
Definition of weapons of mass destruction
25.  The term “weapons of mass destruction” originated as an umbrella concept
covering weapons with the capability to cause indiscriminate loss of life and wide-scale
destruction.
7  House of Commons, Official Report, 3 February 2004, column 625.
8  Review of Intelligence on Weapons of Mass Destruction [“The Butler Report”], 14 July 2004, HC 898,
paragraphs 152-153.
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