Approval for smoking in SkyCity's high-roller lounge may be stubbed out after it was challenged in the High Court.
A judge ruled yesterday that the way in which the Ministry of Health tested to see if the Diamond Lounge was an open space contradicted the Smoke Free Environments Act.
Lawyers for the Cancer Society, Problem Gambling Foundation and Salvation Army took SkyCity and the ministry to court in August over its so-called "open areas calculator" - used to determine whether a smoking space meets legislation.
Under the act, designated smoking areas must be "open" spaces that are not "substantially enclosed". The calculator assesses factors such as floor space, air flow and openings to determine if a space is open or enclosed.
The complainants began their legal bid after enforcement officers approved the room at the Auckland casino as an open area where gamblers could smoke while playing gaming machines.