Wellington cannabis social club the Daktory was raided by police on Thursday afternoon after a search warrant was conducted.
In a statement, police said a 69-year-old man was arrested and is due to appear in court on Friday on a charge of breaching bail and other charges yet to be confirmed.
The Daktory confirmed the man in custody is club founder Dakta Green.
The raid occurred the day after the Government announced its medicinal cannabis regulations, which the Daktory said was a day celebrated by cannabis users.
"[After] the new regulations are released to the public, a prepared warrant is executed by the NZ Police at the 5pm opening of The Daktory club," it said in a statement.
The Government confirmed there will be a licencing regime for the cultivation, manufacturing and supply of medicinal cannabis products among its regulations, which will come into effect on April 1, 2020.
The statement from the Daktory says there will be a support rally outside Wellington District Court on Friday for Green, consisting of club members and members of the public.
"Dakta has created a peaceful environment for our community members to be. He has sat with and comforted those who face their own mortality because of illness and disease."
The club called it a "dark evening" on an otherwise celebrated day.
"People are still being actively arrested for cannabis charges, despite its imminent transition in three months' time," the Daktory said.
"NZ Police need to stop arresting our people who are causing no harm. With the change of regulation a mere three months away, maybe it's time to stop focusing on cannabis as a dangerous drug and focus on the real issues our community is facing."
The Daktory was previously raided in August when it was located at its previous Wellington address on Hania St, and two men were arrested. At the time, police seized cannabis, cash and equipment for growing cannabis.
The club then relocated to the historic Temperance Hotel on Cambridge Terrace in November.
Green has owned and operated the Daktory since it first opened in Auckland in 2012. That location was also raided and shut down.