A 33-year-old male has been charged with manufacturing and possessing methamphetamine and possessing cannabis.
Investigations continue and more arrests are possible.
"We know methamphetamine is causing devastation to families and whanau across New Zealand. We continue to encourage our community to provide us with information so that we can stop these people who are distributing this drug and do not care at all about the impact it has on users," said Acting Detective Inspector Aaron Proctor.