The Criminal Court on Monday sentenced motorcyclist Pol L/Cpl Norawich Buadok, 21, to one year and 15 days in jail for running over and killing Waraluck Supawatjariyakul on a zebra crossing in Bangkok three months ago.

The court was told that Norawich, of the Metropolitan Police Bureau's Protection and Crowd Control Division, was driving the Ducati Monster big bike that hit Dr Waraluck, of the faculty of medicine at Chulalongkorn University, on a pedestrian crossing on Phaya Thai Road in Ratchathewi district, on Jan 21.

She died of her injuries.

Waraluck was a popular member of the faculty, known as Mor Kratai from her nickname, Kratai, or "Rabbit".

Norawich was found to be driving at 108-128 kilometres per hour, well above the 80kph speed limit.

He was charged with nine counts and confessed to the charges.

The court found him guilty as charged and sentenced him to a total of one year and 15 days imprisonment without suspension.

The court initially sentenced him to two years and 30 days in prison and fines of 8,000 baht.

The sentences were commuted to one year and 15 days in prison and 4,000 baht in fines because he confessed.

Waraluck's family have filed a 72 million baht lawsuit against the Royal Thai Police Office and Pol L/Cpl Norawich  over their daughter's death. They charge that Norawich was on duty at the time and the Royal Thai Police Office is therefore responsible.