Should a police report be made?
At least two police reports have been made in the four confirmed cases of students taking upskirt images of their teachers.
The New Paper understands that the schools involved preferred to handle the matter internally, though at least one school gave the teachers the option of reporting the matter to the police.
But should the police get involved?
In view of the young ages of the culprits, former educators, counsellors and parents whom The New Paper spoke to were divided on this.
Dr John Lim, director of the Singapore Counselling Centre, said a police report ought to be made when a person's modesty is violated, even when the alleged offenders are young.
"This is to let the offenders know it is seriously wrong and a criminal offence, which will in turn send a message that there are boundaries that cannot be crossed, regardless of age," he said.
The consequences of not filing a police report could increase the likelihood of the culprit reoffending, while the victim could suffer from a sense of injustice, he said.
He added that the victim should make the report so as to give a first-hand account of what happened.
Mr Ho Kong Loon, 69, a former primary school teacher with 40 years' experience, however, felt that the onus should fall on the principal.
"If the teacher wants to make a police report, it would be logical to first get the nod from the school head. Not doing so might be deemed an act of insubordination," Mr Ho said.
Psychologist Frances Yeo of Thomson Medical Centre said the decision should rest on the victim, based on the degree to which she feels her safety was threatened, the level of trauma she suffered, and whether she believes herself to still be in danger.
Ms Yeo said: "This is a unique situation where an offence was perpetrated by an underage person on an adult.
"It is for the victim, who is an adult in this situation, to decide if a police report is the right and necessary consequence in order to right the wrong perpetrated on her.
"The school needs to take into account the teacher's feelings about this matter when considering how to manage this unique situation."
Member of Parliament Seah Kian Pengsaid the decision should be left to the school and its teachers.
"My own preference is not to take the police-report route, but we should ensure the students are taught a lesson," he said.
"If it is a recalcitrant case, then a police report is warranted," said Mr Seah, who sits on the Government Parliamentary Committee for Education.
A former teacher and three parents felt that the young age of the culprits should be considered.
Curriculum development consultant Marietta Koh, who is in her 40s, said: "Though the boys committed a grave offence, I feel that the school (in TNP's report last Saturday) handled the matter admirably by not lodging a police report considering their young age.
"The school has already sent a clear message to the student population that such an offence is not to be condoned by publicly caning those who had taken the upskirt videos, and this adequately serves as a strong punishment and deterrent."
Filing a police report may leave a permanent blemish on the students' record, said Ms Koh, who used to teach at Serangoon Junior College and Raffles Institution in the 1990s.
She said it was more important to counsel and teach the students about the consequences of their actions.
The three parents gave similar views on why the police should not be called in.
Madam Lena Lim, 45, a business assistant and mother of a 19-year-old daughter, said that during her secondary school days, male students would try to peep under female teachers' skirts using mirrors as they walked past them in class.
While stressing that this was "definitely wrong", she added: "As a parent, we also hope our child will be forgiven, with preventive steps put in place.
"First-time offenders should be publicly caned during assembly to send a strong message to the student population, be given warning letters, and have their parents informed.
"But for a repeat offender, like the student who had been expelled before, a police report should be made to prevent re-occurrence."