The former royal butler Paul Burrell has warned that the inquest into the deaths of Diana, Princess of Wales and Dodi Al Fayed must go further than the original French inquiry in 1997.
Diana and Dodi died when their car crashed in a Paris underpass
Mr Burrell hopes that full scrutiny will be made into their deaths after a coroner announced he would open their inquests in the New Year.
Surrey Coroner Michael Burgess is expected to begin the inquiry on 6 January, more than six years after their car crash in Paris.
Mr Burrell, who was speaking to Sunday newspaper, the Wales on Sunday said: "It is imperative the scope of this new hearing on British soil goes much further than merely examining the cause of death.
"After spending so long dragging their feet and stalling for time, the British authorities cannot afford to settle for rubber-stamping the salient facts and terrible injuries suffered by the Princess and Dodi Al Fayed."
The former butler, who has been criticised of betraying Princess Diana in writing A Royal Duty, said that he hoped his book had encouraged the decision to open a full inquest.
"The legacy is to spark an inquest into the circumstances of her death, then I've done my duty," he said.
"That was the main aim of the book, and to justify my unique relationship."