Spanz declined to comment on the MOU, referring queries to police.
However, president Sandy Pasley, in a November newsletter sent out to members, said she and executive member Patrick Walsh had met with police "to discuss recent events involving students and the misuse of social media".
An update in February's newsletter said the MOU was "following on from media coverage mentioning schools in circumstances that were outside the parameters of the school".
In a statement to the Herald, Acting Assistant Commissioner Dave Trappitt said police regularly partner with school to "proactively prevent crime, victimisation and crashes".
"'Partnership' 'with schools is a key theme of our approach to school community policing," he said.
"The MOU currently being drafted between NZ Police and the Secondary Principals' Association of New Zealand is about formally establishing a collaborative working relationship to enhance community safety, where children and young people live and learn free from harm.
"The MOU aims to enhance trust and confidence with the secondary schools which aligns with our vision -- to have the trust and confidence of all."