Monthly grooming inspections for boys and a ban on untied hair for girls - some Auckland schools have strict rules on students' locks.
The Herald spoke to parents and principals following the suspension of a boy who refused to cut his long hair.
Mt Albert Grammar has this year brought in a rule for girls to have all their hair tied back. Boys can have long hair as long as it is tied back as well.
Headmaster Dale Burden said the rule change reflected feedback from parents and students.
He said he backed St John's College in Hastings, whose suspension of student Lucan Battison, 16, has been challenged in court by his family.