A Scottish judge has struck down businessman Mr Mohamed al Fayed's bid to win a public inquiry into the 1997 deaths of his son Dodi and Princess Diana.
In delivering his decision against the inquiry, Lord Drummond-Young ruled that the European Convention of Human Rights does not grant Mr Fayed the right to a full public investigation of the deaths - as he had argued.
The Egyptian-born owner of Harrods department store said he intended to appeal. He has already failed to persuade courts in England and France to heed his request for a public inquiry and was turned down once before in Scotland.
Mr Fayed has repeatedly claimed that Diana and his son were murdered by British secret services because their relationship was embarrassing to the royal family.
The pair died when their limousine crashed in a Paris tunnel in August 1997. More than six years later, speculation that they were murdered has not cooled.
French authorities ruled in 1999 that the crash was an accident caused by chauffeur Henri Paul, who was also killed, being drunk and driving too fast through the tunnel.
Britain began a police investigation into the deaths in January. Royal Coroner Michael Burgess opened the inquest by saying that Britain's top police officer should investigate claims the crash was not an accident. He then adjourned the inquest for 12 to 15 months, meaning no evidence will be heard for another year.
Mr Fayed has criticised the British inquest for being too limited in scope.