THE DIANA INVESTIGATION

By THOMAS SANCTON/PARIS

Last week TREVOR REES-JONES, the bodyguard who was with PRINCESS DIANA and DODI FAYED, underwent questioning by investigating judge HERVE STEPHAN in a heavily guarded second-floor room at Pitie-Salpetriere hospital. Although he recalls the final moments before leaving the Ritz and getting into the car, Rees-Jones, 29, remembers nothing about the accident itself. He did tell the judge that driver HENRI PAUL seemed to be in a perfectly normal state before taking the wheel, though blood tests showed he was legally drunk. But when asked for details about the moments leading up to the accident itself, Rees-Jones repeatedly answered, "I don't remember." After some 20 minutes, questioning ended.

Stephan would like to question Rees-Jones again. But the ex-paratrooper reportedly tired quickly. It is not clear when he may be in shape to meet the judge again. Meanwhile, investigators are looking at the possibility that the fatal Mercedes may have collided lightly with another car in front of it, causing Paul to lose control. They are intrigued by taillight fragments from a Fiat Uno found near the tunnel entrance. Skidmarks, pieces of the Mercedes' headlight and scratches on its right side also support this idea, as does some eyewitness testimony.

--By Thomas Sancton/Paris