Millions of dollars worth of methamphetamine have potentially been prevented from hitting the streets due to the smashing of an organised drug ring in Bay of Plenty, police say.
Operation Detroit culminated today in a series of search warrants in Maketu, Te Puke and Tauranga involving about 40 staff.
Police said the raids had put two clan labs out of operation.
A total of 16 men and two women have been arrested during the nearly four month operation.
Three men and one woman face a variety of cannabis offences. The remaining 14 all face a variety of Class A drug-related charges.