Regulatory Impact Assessment relating to a cannabis regulatory model [pdf, 7.6 MB]
...The potency of cannabis in New Zealand has remained low for the last 10 years, however high potency cannabis is available due to experimentation with plant strains and cultivation methods. Research conducted by New Zealand Police and the Institute of Environmental Science and Research (ESR) suggests that average THC levels of cannabis in New Zealand have increased over time.20 In 2010, Police and ESR tested cannabis produced ndoors using the ‘Screen of Green’ method (the method of indo...