A massive spike in meth use is being linked to a change in global shopping habits

Chris Luxon has asked ministers to look into meth use, after annual wastewater results show a 96 percent increase in consumption last year compared to 2023.

Massey University drug researcher Chris Wilkins says it's likely a case of both people using more, and more people using.

He says the increase represents the changes to the drug market, which is moving from a brick and mortar store, to a global online platform.