Weapons, cash and drugs have been seized after a "routine" enquiry at an Auckland property on Friday.
Police arrived at the Blockhouse Bay address at around 9:30pm, where they were confronted by a man who fired a blank round from a pistol before fleeing.
After officers caught and arrested him, they found methamphetamine and $10,000 cash in his possession.
Police also stopped three people in a vehicle near the top of the property's driveway. When it was searched, they found a number of weapons, drugs and drug paraphernalia.
A 35-year-old man has been charged with possession of methamphetamine for supply and is due to appear in court in April. Other charges are likely.
The three known gang members or associates have also appeared on drug-related charges.
West Auckland Area Commander Inspector Grant Tetzlaff says this behaviour is "completely unacceptable" and police will continue to target drug dealers in the community.
"We are determined to target those who profit through the manufacture and distribution of illicit drugs at the expense of vulnerable people in our communities with complete disregard for the ongoing social harm they cause," he says.
"Anyone who is participating in this type of activity should get the message - your behaviour will not be tolerated.
"Additionally anyone who threatens our staff should know we will hold them to account."
Anyone affected by drug addiction is urged to seek help through the Alcohol and Drug Helpline on 0800 787797, or free text 1737 to speak with a trained counsellor.
Police ask anyone with information regarding organised crime or drug-related offending to call 105 or contact Crimestoppers anonymously on 0800 555 111.