Liz Heron, Elaine Yau and Fox Yi Hu:

More than 30 teachers and classroom assistants have been convicted of sex offences in the past 10 years – but the Education Bureau will not say if they are still working in the city’s schools.
Since January 1, 2000, at least 31 staff have been convicted of offences ranging from indecent assault of their pupils to secretly filming girls getting undressed for a dance class.
The catalogue of convictions and the names of the offenders was compiled by the Sunday Morning Post (SEHK: 0583, announcements, news) and presented to the Education Bureau, which was asked what action had been taken against the offenders.
But the bureau, responsible for registering teachers and advising schools on vetting prospective staff, refused to say how many of the 31 were still registered as teachers and how many were working in schools.
A spokeswoman also refused to explain why it would not release the information to the public. She did say 13 teachers were deregistered from 2006 to 2008 and seven of these had been convicted of sex offences.