Armed police using stun grenades seized the Mongrel Mob's Dunedin headquarters this morning as part of a six-month crackdown on the gang in the city.
Two gang members were at the premises. Police say they entered without incident, although stun grenades were used.
One gang member was arrested and will face drugs charges.
Police found two air rifles, an imitation pistol and "a dangerously modified baseball bat" in the house, a police spokesman said.
Police also set about dismantling parts of the premises, including fencing around the property, alleged to have been built using stolen materials.
The swoop was part of the culmination of Operation Rocket - a six-month investigation into organised criminal activity in Dunedin.
The seizure follows the arrest of 11 Mongrel Mob Aotearoa members and associates on Wednesday and a further 7 members and associates on Thursday, all on charges relating to illegal drug activity.
Police said seizing the headquarters for the Crown under the Criminal Proceeds (Recovery) Act 2009 will help to make the suburb a safer place to live.
"The presence of the gang premises in Middleton Road has contributed to a climate of fear in the local community - no doubt a factor in the publicity recently given to the significantly reduced roll at Corstorphine School," Detective Inspector Steve McGregor said.
"We hope today's events will go some way to contributing to a safer community in Corstorphine, a suburb where incidents of violence and intimidation have featured from time to time."
