French investigators say new evidence confirms Princess Diana's driver Henri Paul was drunk on the night she died, the BBC reported in a documentary to be broadcast on Sunday.
Although the official French inquiry blamed the 1997 crash on the chauffeur being drunk and driving too fast, conspiracy theorists have always questioned that verdict. Mohamed al Fayed, father of Diana's companion Dodi, who was killed in the crash, has repeatedly said the pair were murdered because their relationship was embarrassing the royal household.
He and Paul's parents said the driver was sober when the car hit a pillar in a Paris underpass. The British Broadcasting Corporation's documentary says French police ordered DNA tests on Paul's blood sample to prove it was his and had not been switched in hospital.