They've made 43 arrests since February - including eight 28 Brotherhood MC gang members this week.
The syndicate's allegedly employed baggage handlers to smuggle large quantities of meth and cocaine.
Customs investigations manager Dominic Adams says cross-agency enforcement teams are patrolling - and authorities are intelligence-sharing with overseas partners.
He says the intelligence is used to target within New Zealand - so those international networks of Police and Customs liason officers are critical.
