“…Prior studies pointed out that drug classification and scheduling laws in many countries are more commonly based on the socio-cultural, political and historical influences, rather than scientific evidence (Bourgois, 2008; Courtwright, 2004; Nutt, King, Saulsbury, & Blakemore, 2007). It was suggested that drug classification should be based on a “rational scale” of drug risk assessment and conducted by scientists and drug experts, rather than politicians (Morgan, Muetzelfeldt, Muetzelfeldt, Nutt, & Curran, 2010; Nutt et al, 2007; van Amsterdam, Opperhuizen, Koeter, & van den Brink, 2010).…”