UK Government Prevent Training's 'The Conspiracy Chart' groups conspiracies into five different categories

Training delivered as part of the government's flagship anti-extremism programme Prevent showed school governors material suggesting conspiracies over Princess Diana's death raise legitimate questions. 

A graph entitled The Conspiracy Chart groups conspiracies into different categories based on how believable or pernicious they are. 

Included under the title 'We have questions' were Diana's death in a car crash, JFK's assassination, the death of Marilyn Monroe and the statement '[Jeffrey] Epstein didn't kill himself'. 

The chart suggested there were legitimate questions to be asked about these deaths, with the next section listed 'Unequivocally false but mostly harmless'. 

The graphic, produced by disinformation researcher Abbie Richards, was shown at a training session to help school governors work out which comments should be referred to Prevent, The Times reported.   

The Home Office said the graphic was not part of its sanctioned training and was used by a 'freelancing' trainer. It is not clear in what context the graphic appeared and there is no suggestion there was a discussion about Diana during the training itself.