If a school is unable to get an excluded student enrolled elsewhere, the ministry is called in to help.
AUT School of Education associate professor Nesta Devine has studied the exclusion process at West Auckland high schools and believed when schools worked together, students were often folded back into the education system.
But in some regions and cases a lack of schools or a child's reluctance to participate made the process difficult, she said. "If they have been out for 300 days there has been some reason why the normal processes aren't working.
"They may have spent 300 days fishing or they may have been feeling terribly rejected. Either way, a person responsible has been unsuccessful in finding them a place, and that's serious."
Katrina Casey of the Ministry of Education said delays were caused by complex cases, often linked with other agencies, transience and mental health.
Process
• A suspension is the formal removal of a student from a state or state-integrated school until the board of trustees decides to lift the suspension, extend it, or make the student leave school (known as an exclusion for children under 16 and an expulsion for older students).
• If a school is unable to get an excluded student enrolled elsewhere, the Ministry of Education takes over.
• One teenager was left in limbo for 305 school days after an exclusion.Nicholas Jones education