Fifty rentals, five tonnes, three businesses and $80,000 in cash: Inside Operation Blackout.

Updated 31 August 2026

Additional reporting has since implicated two garden supply businesses and an Auckland nail salon, with the alleged leader the sole director and shareholder of all three. Police have seized the salon's financial records and are investigating unexplained cash deposits into the supply companies' accounts.

The setup

On 20 August 2026, a 36-year-old man from Flat Bush appeared in the Manukau District Court on six charges: participating in an organised criminal group, money laundering, supplying equipment used in cannabis cultivation and possession of cannabis for supply. He is due back in court in November.

Five days later, New Zealand Police explained what he had allegedly been running.

Operation Blackout was a ten-month investigation by the National Organised Crime Group, supported by Immigration New Zealand and New Zealand Customs. Over the week of 18 August it ended with 19 search warrants across Flat Bush, Howick, Sylvia Park, Wiri and Massey and twelve arrests. Alongside the alleged leader, eleven others were charged, two women and nine men.

Police recovered more than five tonnes of cannabis material from 50 rental properties, roughly $1.25 million of cultivation equipment from two warehouses, $80,000 in cash, several large bags of MDMA pills and a pistol and ammunition at the Massey address.

They also executed a search warrant at a nail salon.

The syndicate sold grow houses as a service

Police allege the twelve arrested were not cultivators but facilitators, running the infrastructure other people's cannabis operations depended on.

"Police are alleging that those arrested during Operation Blackout are members of a syndicate that facilitate cannabis grow operations for their profit," Detective Senior Sergeant John Brunton told the Herald. "They operated two warehouses in Auckland that supplied equipment and arranged financing for the grow houses."

"They also assisted with securing rental properties, electrical work and arranged crop sitters at the various Auckland addresses."

Equipment, finance, property, trades and labour, from one supplier, for a fee.

A recent police intelligence briefing released under the Official Information Act calls operators like this "criminal entrepreneurs". Facilitators specialise in one part of the supply chain and are often linked to several Vietnamese organised crime groups at once, which makes them a wholesale business with multiple customers rather than a gang with territory.

Police went up the chain because the last operation only caught the bottom of it
Blackout was born out of Operation Beryl, which shut down 120 grow houses in Auckland and confiscated 10 tonnes of cannabis in the space of a few weeks last year.

Those arrested and deported after Beryl were mostly crop sitters, sitting at the bottom of the criminal hierarchy. The National Organised Crime Group, a specialist division with ring-fenced staff, was then tasked with investigating the facilitators.

Brunton said police had taken their time to investigate the syndicate and build a picture of its network, alleged to be one of the largest of its kind.

The crop sitters were the product of a separate fraud

The people found in the houses were Vietnamese nationals duped into coming to New Zealand on false promises of employment, often after paying tens of thousands of dollars to unscrupulous immigration agents for visas. Instead of the jobs they were promised, they were made to tend cannabis plants as crop sitters to repay debts they did not really owe.

Sixteen have been identified in Blackout. Eleven have been deported. Five remain in New Zealand pending prosecution.

The Herald has previously reported Operation Clementine, which found more than 200 Vietnamese nationals entering New Zealand on work visas sponsored by defunct businesses, mostly in construction and hospitality. Those businesses turned out to be fronts for a network of Auckland grow houses. The police intelligence briefing states that Vietnamese organised crime groups have "almost certainly" exploited immigration pathways to enable their offending.

Three companies, one director

Companies Office records show the alleged kingpin is the sole director and shareholder of two garden supply businesses, as well as a nail salon in Auckland.

The two garden supply companies are the businesses that allegedly sold the cultivation equipment. They were registered New Zealand companies operating inside the syndicate, selling to grow houses the same syndicate had helped set up.

Police have said where that leads. Brunton confirmed the investigation will now focus on alleged unexplained cash deposits into the bank accounts of those two businesses. He also confirmed the search warrant at the Auckland nail salon, where financial records were seized for further investigation.

"We are still in the early stages of quantifying the value of funds believed to have been laundered," Brunton said. "However, financial analysis, supported by other investigative evidence, indicates the use of money laundering typologies consistent with the concealment and movement of proceeds derived from alleged cannabis cultivation offending."

The same intelligence briefing records that Vietnamese organised crime groups start businesses in construction, beauty and hospitality to launder the profits of their criminal enterprises. Garden supply and a nail salon fit that pattern: sectors where cash is normal, margins are hard to verify and turnover can be inflated quietly.

The structure has appeared many times before. In Bondi, Sydney, a beauty salon received $1.5 million in payments for property, renovations and equipment, much of it in cash, against declared incomes under $100,000. In the UK, the National Crime Agency's Operation Machinize targeted barbershops, takeaways and vape stores as fronts for drug trafficking and modern slavery, referring more than 450 companies to Companies House for further investigation.

Fifty tenancies that nobody was required to check

Police allege the syndicate helped secure the rental properties. Each one needed an application, an identity check, a reference, a bond and a tenancy agreement and each one was granted.

Residential property management sits outside the AML/CFT Act. Real estate agents became reporting entities under Phase 2, but their obligations attach to transactions: listings, sales, purchases. Placing a tenant in a $650-a-week Flat Bush rental is not captured. Basic checks are required, proof of income, government-issued ID, past rental references, but there is no customer due diligence, no source of funds enquiry, and nowhere to file a suspicious activity report.

No single landlord ever saw a portfolio. Each saw one tenancy that paid on time.

Rent is the cheapest legitimacy money can buy. It is the most ordinary outbound payment in New Zealand retail banking, and 50 properties paying market rent generate a pattern no monitoring rule will flag.

A repeating business model

Blackout is not the start of anything. Police have been running Operation Bush against organised cannabis cultivation and money laundering since December 2021, with asset seizures and property sales already behind it. Police sources put more than 300 Auckland homes as currently or recently used by Vietnamese syndicates, mostly in quiet, comfortable suburbs. Landlords are left with repair bills of up to $500,000 for wrecked wiring, plumbing and black mould.

Three takedowns in the past two months give some sense of the scale.

Operation Harvey, July 2026. Fourteen grow houses in Rotorua, 25 warrants across Rotorua and Auckland. Of 21 residential properties searched in Rotorua, ten were rentals. Police seized 3,500 plants and 97 pounds of dried head, worth $1.8 million at bulk and over $6.5 million on the street. Sixteen Vietnamese nationals were arrested. Electricity diversion was running at approximately $30,000 a week.

Waikato, the same week as Blackout. Fourteen Vietnamese-run grow operations dismantled across the district, holding between 200 and 600 plants each, with up to 750kg seized from a single property. At a Frankton industrial premises, operators built fake walls to hide 580 plants across multiple grow rooms. Electricity theft ran at around $10,000 a month per operation. Five people were arrested on 19 August and three more the following day. Detective Senior Sergeant Nigel Keall described "rented residential and commercial properties" that had been modified and set up as commercial grow operations. Police said the property owners were unaware.

Four operations across four police districts, all built the same way.

What Blackout exposes

Vietnamese organised crime groups are renowned worldwide for cultivation expertise, and growing the cannabis was the straightforward part of this business.

Turning five tonnes of it into money that can be banked was the difficult part, and that is what the syndicate is alleged to have sold. Not the grow houses, which belonged to its customers, but three registered New Zealand companies with one director, two warehouses of equipment sold for cash, a lending arm, and a nail salon whose financial records are now with police.

All three companies were legally incorporated and able to open bank accounts. None of that required a false document.

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All matters described are before the courts. The charges outlined are allegations and have not been proven. The alleged leader has not been publicly named.