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Testing will be rolled out to 38 sites across the 12 Police districts this month and will capture 80% of New Zealand’s population.
Police Commissioner Mike Bush said wastewater testing was crucial to Police’s understanding of drug consumption in communities.
“Expanding the programme to regional New Zealand and other major centres will help us continue to build a better picture of the prevalence of illicit drug use in New Zealand communities as well as the subsequent social harm.”
Wastewater testing has been conducted by ESR at three locations – Rosedale in Auckland, Christchurch and Whāngarei since 2016.
Analysis of samples from these sites has revealed extensive and diverse patterns of drug use, and has significantly enhanced understanding around the demand and supply of illicit drugs and the impact on individual communities where testing was undertaken.
“Over the past 18 months, 1.5kg of methamphetamine was estimated to have been consumed on average each week across the three test sites.
This translates to an estimated $2 million a week in social harm.
“Expanding the number of sample locations will help us identify differences in drug use between geographic regions and will act as an early warning system for emerging risks,” says Mr Bush.
ESR Chief Executive, Keith McLea, says the organisation has extensive expertise in the science of wastewater testing.
“The pilot project provided real-time information about drug use patterns in the wider population which is proving invaluable in keeping communities safe. We highly value our partnership with Police and look forward to the national roll out.”
The drugs currently tested for are: methamphetamine, cocaine, heroin, MDMA and Fentanyl.
Cannabis will be introduced in Northland and across Tāmaki Makaurau, and ephedrine/pseudoephedrine will be introduced at all sites as part of the rollout.
Results from the new testing sites will help inform prevention and treatment strategies, allow comparison with international data and measure the effectiveness of education and enforcement.
The four Tāmaki Makaurau sites began testing on 1 October with the rest of the country’s sites expected to be testing by the end of the month.