The boss of a company that claimed tap water causes cancer has been found guilty of misleading conduct.
Four years ago an investigation by TVNZ's Close Up exposed the outrageous claims by filtered water company Love Springs, which included claims that over time tap water caused bone cancer and miscarriages.
A TVNZ producer posed as a sales trainee to covertly record Love Springs training sessions.
Last year the company admitted several charges, and today boss Phillip John Smart was personally convicted of seven charges of misleading conduct.
In court in July Smart repeatedly insisted he did not know about the scare tactics, and stamped on them when he found out.
But the judge rejected his evidence, saying Smart knew of, approved and encouraged the training techniques.
The court ruling said the Close Up story was a critical event for Love Springs - damning, and crucial to assessing boss Smart's credibility in court.
Smart and his company have previously been prosecuted in Australia.
Smart will be back in court for sentencing in December.