Thai police are pressing drink-driving charges against the Red Bull energy drink heir accused of killing a police officer while speeding in his Ferrari before fleeing the scene.
Police said tests taken in the hours after Monday's crash showed 27-year-old Vorayuth Yoovidhaya's blood alcohol content was at 0.063, exceeding the legal limit of 0.05
Officers said the findings could result in a stiffer penalty for Vorayuth, who was originally charged with causing death by reckless driving.
Police said Vorayuth has admitted to driving the Ferrari that struck and killed the officer but says the officer swerved in front of his vehicle. Witnesses say the car dragged the officer's body down the road before speeding away.
Vorayuth's lawyer has said his client was not drinking before the accident.