Lord Butler's 14 July 2004 report of his inquiry into the intelligence that took Britain to war against Iraq in March 2003.
Prime Minister Tony Blair took Britain to war against the majority of public opinion.
Intelligence claimed that Iraq held weapons of mass destruction, but none has been found.
Inquiry has questioned the media as to whether the government drip-fed or 'spun' information on Iraq's weapons Inquiry could reignite discussion over reasons Blair gave for joining the conflict.
Blair government reportedly braced for heavy criticism.