Gangs are making hundreds-of-millions of dollars in profit by dominating the illegal drugs market in New Zealand.
The latest research from the country's drug trends survey of 13,000 people shows gangs are selling about 40 percent of methamphetamine in Northland, Canterbury, Nelson, and Marlborough.
The results also show many people are finding and buying their drugs via social media apps and chat groups.
But it's not without risk - with 12-percent of those surveyed experiencing victimisation while buying drugs in the past six months, including receiving fake and unsafe drugs.
The research is led by Massey University associate professor Chris Wilkins.
Wilkins spoke to Corin Dann.
