From the UK's BC News:
The Royal Coroner says he is not yet able to fix a date for an inquest into the death Diana, Princess of Wales. Michael Burgess, who is also the Surrey coroner, announced in August he would conduct an inquest into the princess' death and the death of her companion Dodi Al Fayed. The French inquiry in 1999 blamed French chauffeur Henri Paul, who also died, concluding he had taken a cocktail of drink and drugs and had been driving too fast. According to British law, an inquest must happen when a body is returned to Britain following a death abroad.
"The inquest into the death of Diana, Princess of Wales, has not yet been held because the various investigations being made on my behalf have not so far been concluded," Mr Burgess said on Wednesday. He said that he wanted to "take into account of the findings of the investigations and proceedings in France" but understood that "some of these matters are still before the French courts."
It was his responsibility to decide on the scope of the investigations, the witnesses to be called, when to hold the inquest and "the practical arrangements for the public hearing. I am not yet in a position to make final decisions on any of these matters, but aim to do so as soon as I can."
Meanwhile, Buckingham Palace's lawyers are examining Mr Burrell's book containing details of alleged letters between the Prince of Edinburgh and Diana. Buckingham Palace requested a copy of Paul Burrell's book. It is understood that officials at Buckingham Palace have spoken with their legal advisers to see if the law of copyright has been breached. The palace would view the correspondence as private as they were not bequeathed to Mr Burrell. The copyright of letters remains with the person who wrote the correspondence or, in the late Princess's case, with her estate, primarily her sons Prince William and Prince Harry.
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http://news.bbc.co.uk/1/hi/uk/3203909.stmThe rules for a Royal inquest state that all senior members of the Royal Family MUST attend the coroner's court, as was made plain after the untimely death of the later Duke of Gloucester in 1972, following an airplane crash.