A raft of alleged inconsistencies in the evidence surrounding the death of Diana, Princess of Wales, has been published in a book by an investigative journalist.

Australian journalist John Morgan claimed he was disclosing a “tidal wave of evidence” that undermined the official conclusion that her death was an accident.

The inquest into the death of the Princess concluded that she and her boyfriend Dodi Fayed were unlawfully killed through a combination of the gross negligence of their driver, who was speeding and was more than three times the French drink-drive limit.

The book alleges Parisian investigators bungled the inquiry and that documents prove that there was a second body in the morgue when tests were carried out.

He claims there were inconsistencies in the blood samples taken, errors in identifying the body and said key witnesses were not allowed to give evidence at the inquest.