Mr Blair has used the hearing to mount an impassioned defence of the decision to go to war, telling the panel: "This isn't about a lie or a conspiracy or a deceit or a deception.

"It's a decision. And the decision I had to take was, given Saddam's history, given his use of chemical weapons, given the over one million people whose deaths he had caused, given 10 years of breaking UN resolutions, could we take the risk of this man reconstituting his weapons programmes or is that a risk that it would be irresponsible to take?"

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