When we talk about new psychoactive substances, or in short NPS, we are referring to narcotic or psychotropic drugs that are not under international control. This means that they are not listed in the United Nations Conventions of 1961 or 71, the international treaties that state which drugs are under control such as cocaine, cannabis, heroin, amphetamine, LSD and methamphetamine. Although NPS are not controlled internationally through the UN conventions, there might be other forms of control.
Music: Robert Meyers, The Magnificient Escape 2009 (Creative Commons License).
