Report

United Kingdom. Home Office. (2025) UK circular 002/2025: The Misuse of Drugs Act 1971 Order 2024. Changes to the Misuse of Drugs Act 1971 to control 22 substances, with 2-benzyl benzimidazole variants (nitazenes) falling under a new generic definition. London: Home Office.

United Nations Office on Drugs and Crime. (2024) The challenge of new psychoactive substances - a technical update. Vienna: United Nations.

Advisory Council on the Misuse of Drugs. (2024) Acyl piperazine opioids, Including 2-Methyl-AP-237. London: Advisory Council on the Misuse of Drugs.

Webpage

Center for Forensic Science Research and Education. (2025) Novel psychoactive substances (NPS) trend reports. URL: https://www.cfsre.org/nps-discovery/trend-reports

United Nations Office on Drugs and Crime. (2024) UNODC Early warning advisory (EWA) on new psychoactive substances (NPS). URL: https://www.unodc.org/LSS/Home/NPS

FactSheet

United Nations Office on Drugs and Crime. (2024) What are NPS? Vienna: United Nations Office on Drugs and Crime.

News

[Department of Health and Children] Minister of State with responsibility for Drugs Strategy, Róisín Shortall T.D., announces ban on more head shop products. (02 Nov 2011)