It took a photo to convince her they were real and her daughter wasn't making up the story.
"I really thought my girl had got it wrong when she told me there were cameras in the girls' toilets.
"I honestly didn't think schools could do that. And we hadn't been told."
After seeing photographic proof of the camera, she contacted a dean at the school to raise concerns but claims she was told "not to be ridiculous" and "that's not what we do".
However, the principal confirmed to the horrified mum that cameras were installed throughout the school last year after a decision by the board of trustees.
She was told they were meant to counter a graffiti problem in the bathrooms and only two people had access to the footage: himself and the person in charge of IT.
The principal tried to reassure the mother the pupils' privacy was not at stake with vision down into the cubicles blacked out, she said.
"I don't want to even think of my daughter using the toilet and someone being able to watch her.
"That's just disgusting.
"I told the school my daughters will not be using the toilets, ever," she said.
"It's completely inappropriate that they've done it," she said.
She believed parents should have been notified.
Other parents she had contacted were also outraged. But Otumoetai College principal Russell Gordon told the Herald the cameras had been installed for about 20 months and only showed the wash bay areas and did not capture any vision inside cubicles.
"The reason for these cameras are to ensure the individual safety and security of our students," he said.
Prominent notices indicatedthe presence of cameras in the toilets and the school had clear policy guidelines about storage and access to the information collected.
Gordon said he had only received one complaint from a parent concerned about the placement of a camera, but it only showed students entering and exiting the toilets and did not capture any vision inside cubicles, he said.
Last week, the Herald reported students at Rutherford College ripped down a CCTV camera outside the boys' bathrooms because they were worried it might capture them exposed.
The school defended the cameras, saying they were there to protect students and record any incidents that took place.
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