Lottery bosses carried out an investigation into a mental health provider which linked Lotto to an increase in problem gambling, raising questions about how it used taxpayer money.
The investigation report said the finances of the mental health provider "should be of immediate concern" to the Ministry of Health. It also rubbished statistics showing Lotto-related harm.
The report was handed to the Internal Affairs Minister at the time, Nathan Guy, with a request he pass it to fellow minister Peter Dunne, whose portfolio deals with problem gambling.
It came during a stoush between the Lotteries Commission and the Ministry of Health over problem gambling figures.
Figures from Maori mental health provider Haurora Waikato showed an increase in problem gambling, leaving the Lotteries Commission faced with paying more under a levy applied to the gambling industry.