A veteran doctor and motoring writer was convicted of two counts of molesting a female patient after a seven-day trial.

Winston Lee Siew Boon, 70, was found guilty on Friday of touching the breast of a then 34-year-old sales representative at his Thong Hoe Clinic at Bukit Batok Street 11 on Oct 30, 2011 and June 8 in the same year.

The father of two is a long-time contributor of motoring articles to The Straits Times' Life section and Torque magazine.

The patient had testified that she consulted Lee in June that year for nausea, flatulence and chest pain.

She was lying on the bed with her T-shirt lifted up when Lee began tapping her stomach.

She then complained of chest pain and asked the doctor if she could still exercise. Lee said yes, and squeezed her breast. She did not make any complaint as she thought it was part of the examination at the time.

But when he touched her breast again when she was discussing about weight management with him on Oct 30 - her fourth visit - she was shocked and confused. Lee repeated the act while she was still standing.

She lodged a police report the next day after she had sought advice from her friends.

In his oral grounds of decision, District Judge Lim Tse Haw found the victim's evidence "unusually convincing'', and that she gave her evidence in a truthful manner. He also found that she had no motive to bring false allegations against Lee.

On the other hand, the judge found Lee to be untruthful. The judge disbelieved Lee who claimed that he was confused and shocked when confronted with the allegation at the police station and said he could not remember the dates.

The judge said it was simply not believable that the doctor of 40 years' experience could not remember, this being the first time he was accused of molesting a patient.

Judge Lim adjourned mitigation and prosecution's submission on sentencing to April 23.

The maximum penalty for molestation is two years' jail, fine and caning.