Three people have been arrested and charged with drug and firearms offences after a months-long investigation by the police's organised crime team.
Police found a bevy of drugs - methamphetamine, LSD, heroin, cocaine and MDMA - as well as high-powered guns and a "few hundred thousand dollars in cash".
Properties in Northland, Auckland, Waikato and Queenstown were searched after a two-month investigation focused on a particular meth manufacturer whose drugs were distributed right around the country.
A man, 51, and a woman, 37, appeared in Whangārei District Court today, facing a variety of charges including possession for supply methamphetamine and precursors.
The woman is due to reappear tomorrow in the Auckland District Court.
A second man, 51, was arrested in Queenstown on firearms related charges.
Both men are due to reappear in Whangārei District Court on 23 December.