Operation Paget, the Metropolitan Police inquiry led by Sir John Stevens into the deaths of Diana, Princess of Wales and Dodi Fayed, was a remarkable event. It was the first time in this country that the state has investigated a set of conspiracy theories. The report’s title page has it as “The Operation Paget inquiry report into the allegation of conspiracy to murder”; but it actually addresses all the conspiracy theories around the deaths, propagated chiefly by Mohammed Fayed. Most of this involved re-examining the French police investigation. This is, in itself, a quite remarkable event: I can think of no other occasion when the French state has allowed the British state to examine one of its investigations.