Jurors have been warned not to be influenced by their own views on cannabis law as they consider their verdicts on whether or not Switched on Gardener executives were selling equipment knowing that it would be used to grow the substance.
The Crown says Switched on Gardener was a "one-stop shop'' for cannabis-growing equipment which it supplied to people, including undercover police officers posing as growers.
Michael Maurice Quinlan - the owner of Switched on Gardner - is alleged to have been the head of the operation.
Quinlan's two companies, Stoneware 91 Ltd and Hydroponics Wholesalers, are also on trial.
Also in the dock was general manager Peter John Bennett, business development manager Ricky Cochrane, distribution manager Andrew Barry Mai and the South Island manager Paul Kenneth Barlow.