Former United Nations weapons inspector Hans Blix testified before the British Iraq Inquiry. He told the five-member panel that the invasion of Iraq was illegal and that the U.S. and Britain relied on poor intelligence sources leading up to the 2003 invasion. He said that inspectors failed to uncover any weapons of mass destruction in Iraq and that the U.S. was dismissive of opposing views.

The British Iraq inquiry was an independent panel examining British involvement in the war and the circumstances which led to it, and would issue a report which would subsequently be debated in Parliament.