Cannabis users will have to become "do it yourselfers" if they wish to use pipes and bongs to smoke the drug.

From July 1, it was illegal to import and supply utensils that may be used to administer cannabis.

Sergeant Graham Hall, of Timaru police, said he did not believe the ban would stop any current smokers or prevent others from trying cannabis.

"If anyone wants to try it they will, they don't need utensils to smoke it when they can put it straight to their lips," he said.

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