Study of wastewater around the 2019-20 New Year period reveals who is consuming which new psychoactive substances.
Drug traffickers thrive on their ability to penetrate national borders, but a new era of toxic, man-made highs could dissolve those boundaries and transform the global drug trade.
Good legislation gone bad.
The storm, like synthetic drugs, is ripping up New Zealand.
As Kiwis continue to die, addicts like Tammara struggle to access the help they need.
Inside the lives of West Aucklanders affected by the addictive and dangerous synthetic cannabinoid drug known as synnies.
The state has introduced its own "psychoactive substances" act following the UK's controversial lead.
NZ Police just announced three more deaths, taking the total number of cases under investigation to 20.
The ministry has declared 25 synthetic marijuana compounds Class 1 Narcotics.