“The victim took a step backwards and knocked her body into a free-standing smart board.
“When the victim knocked and moved the smart board backwards, the victim saw a mobile phone that had been purposely placed on the ground leaning in an upwards position leaning against the smart board fall to the ground.”
Wong then “immediately … leant down to the mobile phone, picking it up, and making a comment he left it there previously before class”.
The letter from Cammeraygal Principal Kathy Melky, alerting the school community to the incident in December last year.
When the girl tried to talk about the phone, Wong “changed the conversation immediately”, the SMH reports.
It is believed at least 90 videos recorded by Wong were of female Cammeraygal students wearing their uniform.
Police also identified 300 photographic files of the buttocks, groin and breast areas of young women.
“The forensic examination of video files demonstrates the brazen, predatory and opportunist behaviour of the accused, preying on female school students in his science and iSTEM classes,” the police facts state, noting that Wong “is a teacher, a person in a position authority and trust”.
Cammeraygal campus at Crows Nest.
Wong’s LinkedIn profile shows he had worked as a chemistry and physics teacher for the NSW Department of Education for six years and graduated from the University of Sydney.
He will be sentenced next Wednesday, 10 May. The maximum sentence for filming a person’s private parts without consent is five years.