Sir Richard Evans is one of the country's leading historians and has written several books about Nazi .
Sir Richard Evans: "The problem with journalism is that a scoop gets everyone excited and you don't want it to be skewered."
Speaking to Peter Allen on 5 live Daily, he said it was unlikely that Hitler would ever have kept a diary: "He was man of extremely irregular habits. He got up very late, he wasn't a systematic worker, he stayed up until the early hours watching old movies.”
He said Hugh Trevor-Roper fell for the back story: "Police will tell you the key to a successful forgery is not the content or the way it's done, but the story behind its provenance."
The editors of Newsweek, Stern and the Sunday Times all left their jobs following the discovery of the hoax.