Senior official appearing to try hide information being taken 'very seriously'

This story has been updated to clarify the Public Service Commissioner is not investigating the matter

The secondary teachers union fears a video that shows an education official seemingly trying to "subvert" the Official Information Act is part of a wider problem with secrecy around the government's curriculum rewrite.

The head of the Education Ministry is investigating the case after leaked footage given to the NZ Herald showed senior Ministry of Education official Catherine Law telling staff not to put information shared with the minister's office in writing and reminding them it was "OIA-able" - referencing the Official Information Act.

"What we do not need is anything in response in writing that shows that this stuff has gone backwards and forwards between them and us," she said.

"As far as anyone's concerned it's just feedback from me."