A man who is due to be sentenced in Hastings was one of at least 13 people arrested during a nationwide phone-scam money-laundering inquiry.
The 22-year-old has already pleaded guilty and will appear for sentencing on November 15.
The arrest was made during police offensive Operation Deadwood, a still ongoing investigation of what police say was a sophisticated phone scam in which New Zealanders have lost millions of dollars.
The Auckland City Fraud Unit has investigated reports of people losing tens of thousands of dollars to phone scammers, who convinced victims to hand over money after claiming to be from Spark and/or the Police.
Detective Sergeant Kevin Blackman said police had received more than 100 reports from people who had collectively lost money totalling over $2.5 million. One lost about a quarter of a million dollars, he said.