“…Online retail is reported to be one sourcing route for NPS, in addition to offline interactions via friends and local contacts (Sande, 2016;Soussan & Kjellgren, 2016;van Amsterdam et al, 2015). The Surface Web is used in the accessing of information around retail, synthesis and cultivation processes, and how to circumvent national legislative controls (Lavorgna, 2014(Lavorgna, :2016van Amsterdam et al, 2015). Growing use of online drug fora for support and information sharing is observed (Hearne & Van Hout, 2016;Rosino & Linders, 2015;Soussan & Kjellgren, 2015Van Hout, 2014; Van Hout & Hearne, 2015a:b).…”