1. Audit Scotland (2022), “Drug and alcohol services: an update”, available at: audit-scotland.gov.uk, Edinburgh.
2. Bauld, L., Hay, G., McKell, J. and Carroll, C. (2010), Problem Drug Users’ Experiences of Employment and the Benefit System Department for Work and Pensions Research Report No. 640, Stationery Office London: rrep640.pdf, publishing.service.gov.uk (accessed December 2021).
3. Risk and protective factors: a brief review;Drugs & Society,1995
4. Mortality in people who use illicit opioids in England;The Lancet Public Health,2022
5. EMCDDA (2018), “Recent changes in Europe’s cocaine market: results from an EMCDDA trend-spotter study, rapid communications, publications office of the European union, Luxembourg: recent changes in Europe’s cocaine market (europa.eu) ”, (accessed November 2021).