The Correspondence School has audited all its computers and laptops after the resignation of a teacher after a student complained about inappropriate material being stored on a computer.
The teacher had since resigned, and the Teachers Council and the police are investigating the case.
"The police were called in immediately," Correspondence School
chief executive Debbie Francis said today.
"The school immediately commissioned an extensive audit of all 600 plus computers and laptops the school holds."
She would not comment about the specific incident under police investigation.
Parents would be briefed by the school this week, and would be encouraged to contact the school with any concerns, Ms Francis said.
Computers were the major means the school had for communicating with its pupils and it was therefore prudent to carry out the audit, Ms Francis said.
"Going through the hard drives of 600 odd computers is an enormous task and we have engaged an IT forensic specialist," Ms Francis said.
"The audit is about halfway through."
Images found ranged from "joke material" to material which might be classified objectionable, she added.
There was no evidence to suggest child pornography was involved, Ms Francis said.
The school employs between 500 and 600 staff.
- NZPA