The results of the latest controlled purchase operations, conducted by police and the Northland DHB at licensed premises in the Bay of Islands and Whangarei, have dismayed both authorities.
Sixteen and 17-year-old volunteers successfully bought alcohol at four of 11 premises in the Bay of Islands, and four of 23 in Whangarei.
Kerikeri-based alcohol harm reduction officer Senior Constable Graeme Wright described the result as extremely disappointing.
"The four premises involved should have better systems in place regarding not selling alcohol to minors. These sales of alcohol should not be occurring," Mr Wright said.
"All applicants, when they make application for a licence to sell alcohol, state that appropriate systems and procedures are in place to prevent the sale of alcohol to under-age people. Clearly this is not the case for these premises."