Whangarei police spent two hours trying to get a drunken after-ball party with hundreds of teenagers under control, with one teen taken to hospital heavily intoxicated.
Two teenagers were arrested and another hospitalised due to being heavily intoxicated at the party held in the Old Library in the early hours of June 28.
The party was organised by a senior Whangarei Girls High School student following their annual ball. Girls' High principal Anne Cooper said the party was not sanctioned by the school and the outcome was "gutting".
Whangarei alcohol harm prevention officer Sergeant Howard Clement said up to 300 people had bought tickets for the party.
"Between 40 and 50 young people were in the vicinity of the venue in the early hours of the morning, openly drinking alcohol in breach of the liquor ban," Mr Clement said.