A court-ordered warrant for four men wanted over alleged drug offending in the transnational operation Trojan Shield yielded almost immediate effects.
The Operation targeted the importation, sale and supply of methamphetamine, as well as money-laundering activities in New Zealand and abroad, and last week resulted in 35 people being arrested across New Zealand.
More arrests have since been made and more than $3.7 million in assets have been seized since - including cannabis, methamphetamine, iodine, firearms, vehicles and cash.
Senior members of the Comancheros in Waikato, Mongrel Mob in Waikato and the Head Hunters were among those arrested.