A teacher at a Tin Shui Wai school has leaked exam questions so his students would get better grades.
One of Buddhist Mau Fung Memorial College's four Form Three classes received notes from their teacher ahead of their Chinese exam last month. The notes included questions which were identical to those on the exam.
Other teachers became suspicious when the students' results were far better than expected and the answers were similar to model answers.
Principal Chan Chi-wai said the scores of all Form Three students were cancelled, as the notes had been passed around.
The section comprises half the paper's mark, and 2.5 per cent of students' total grade over the year. The results affect whether students can study their preferred DSE subjects from Form Four to Six.
The school has issued a warning letter to the teacher, and the assistant principal will occasionally supervise his class during the next academic year.
This is not the first leaked question scandal. In 2007, a tutorial centre was criticised when a practice question it had set appeared in the HKCEE Chinese Language paper.