Mr Haslam’s mother, Lucy, told The Leader that the development was a “great step forward” in the campaign to have cannabis legalised for medicinal purposes.

The Norfolk Island government announced last week it would allow Tasman Health Cannabinoids to commence growing the plant to supply to overseas markets.

The decision came just weeks after the Tasmanian government rejected a proposal from the company for a similar trial on health, safety and security grounds.

Mrs Haslam said it was another small victory in a campaign to allow terminally-ill patients access to the drug.

“It’s not the magic bullet, but  congratulations for Norfolk Island,” she said. “Tasmania said no and I think it’s their loss, to be frank.”

Unfortunately, Mrs Haslam said the trial was unlikely to neutralise the vexed issue of supply that has been raised by NSW politicians, including Premier Mike Baird.

“I think it’s a great step forward, but at this point I don’t think it will solve the issue of supply – sadly,” she said.

“For (the Norfolk Island-grown marijuana) to be brought into NSW there are still issues with the Commonwealth that will have to be sorted out, which is frustrating.”

Tasman Health Cannabinoid’s chairman Dr Mal Washer said the company was thrilled to have the support of the Norfolk Island government.

“Importantly, we want to play our part in developing quality medical-grade cannabis for those in need,” he said.