A 31-year old man was on Wednesday jailed for six months for sneaking into toilets at Good Hope School and taking photos.

Cheung Chun-hong, a former senior operations officer at Citybus, earlier pleaded guilty to three counts of voyeurism.

Kowloon City Court heard that Cheung dressed in the uniform of the girls' school and put on make up before sneaking into a toilet there. He was caught by two pupils.

Cheung was found to have planted a camera in the toilet.

He was arrested at an industrial unit in San Po Kong, where police found girls' uniforms, underwear and cosmetics.

In mitigation, the defendant's lawyer said Cheung was a first-time offender, was remorseful, and was determined to seek professional help to address his issue.

But in sentencing, magistrate Ko Wai-hung said that while cross-dressing is a personal preference, it was intolerable that Cheung had used it to commit crime and satisfy his sexual desires.

Ko added that the court had to show society's aversion to such offences, as well as protect the privacy of underage students.