Whangārei Police alcohol harm prevention officer Sergeant Tai Patrick said the liquor licenses of the business and the duty manager would be suspended.
He said it was especially worrying when a licensee was caught selling alcohol to an underaged person for a second time.
"From the last couple of operations, it is clear the seller either is not asking for identification at all or checking it properly when it is produced. In either case, it is not good enough when off licensees are still selling to young people."
"As a community, we need to have confidence that licence holders will not sell alcohol to our youth."
Kerikeri Police alcohol harm prevention officer Senior Constable Russau Kalivati applauded the excellent result from the 14 premises tested in the Bay of Islands area.
He said it was only the second operation carried out in the Mid and Far North in two and a half years that had resulted in no sales. The licensed premises that were tested appeared to have good systems in place.
"However, I would like to emphasise that if identification is unable to be produced by anyone attempting to purchase alcohol who looks under 25 years of age, the sellers should not sell the alcohol to them.
"It is important to stress that a full and proper identification check must be carried out including calculating the age. This is best practice and the only sure way to prevent [underage] sales."
Kalivati said the result showed that the off-licensed premises are responsible holders of an alcohol licence and therefore protecting the young people in the communities they operate in.
Controlled Purchase Operations (CPOs) are part of an ongoing programme to assess compliance with the Sale and Supply of Alcohol Act 2012 in an effort to address access to alcohol by minors.
