SkyCity Casino is again caught up in a major drugs enterprise.
Royce Duncan claimed his success as a gambler - not a methamphetamine manufacturer - was the reason he could afford so many expensive toys, such as a 15.2m (50ft) launch.
The ACC beneficiary spent hundreds of thousands of dollarsat SkyCity, according to financial records obtained by police.
Duncan and his wife Alison were VIPs at the casino with "loyalty cards" and spent $882,000 over two years.
Sworn affidavits from police who analysed the financial records say Duncan never lost money at the casino - but most of his "winnings" were not jackpot wins but when he cashed his credit on the pokie machines.
But formal statements from senior SkyCity staff, Phillip O'Connell, show that it is mathematically impossible to consistently win on the pokies. The machines are programmed, by legal requirement, to return a minimum of 87 per cent of the amount wagered over a gaming cycle.