One of the people caught up in a syndicate police say was the market leader in the underground pill market has pleaded guilty.
Police arrested 22 people last month after a 12-month investigation into the manufacture, supply and distribution of Class B and C drugs.
One of those arrested was Ivy Lau. She appeared in the High Court at Auckland today.
She pleaded guilty to two charges - one of possessing and supplying a class B drug.
She will be sentenced in June.