Mohamed al-Fayed's unanswered Diana questions

LONDON (Reuters) - A decade after Princess Diana and Dodi al-Fayed died in a car crash in a Paris tunnel, Mohamed al-Fayed, Dodi's father, argues the deaths were not an accident.

Here are the main questions he believes have not been answered and the issues he says have been covered up.

CHAUFFEUR'S BLOOD TAMPERED WITH?

Henri Paul, the chauffeur who was driving Diana and Dodi's limousine when it crashed, was responsible for the crash because he was driving too fast and blood tests showed he was drunk, police say. Paul was also killed in the crash.

Al-Fayed queries whether the blood tests were genuine. He argues there is no explanation for a high level of carbon monoxide in the blood and there are no remaining samples to prove through DNA tests that the blood was Paul's.

DIANA'S BODY EMBALMED

Diana's body was embalmed in France three hours before being brought back to Britain. Although not an unusual practice, this would make an autopsy in Britain more difficult, al-Fayed says.

Furthermore, it would make render some tests, such as those for pregnancy, redundant. Al-Fayed also queries why Diana was embalmed again in Britain.

British police said embalming was carried out in accordance with French procedures to make Diana's body presentable on account of the injuries she had suffered.