Report

United Kingdom. Home Office. (2017) Drug strategy 2017. London: Home Office.

United Kingdom. Home Office. (2016) Methylphenidate-based novel psychoactive substances: temporary class drug order recommendations. London: Home Office.

United Kingdom. Home Office. (2014) Drugs: international comparators. London: Home Office.

Stephenson, Giles and Richardson, Anna (2014) New psychoactive substances in England: a review of the evidence. London: Home Office.