There have been repeated calls from influential legal and judicial figures for an investigation into whether the invasion of Iraq was illegal, including the former senior law lord Lord Bingham, who last year reiterated that it was "a serious violation of international law".
International law, you see, is above the sovereign decisions of a democratically elected government.
"Some of the debates around the legality of the war are quite sophisticated – it is not all clear-cut," the senior legal figure said. "It's going to be very difficult to deal with someone like Blair without a panel experienced in cross-examination."
And the legal experts know better than the citizens and their elected representatives.