1. Andell, P. (2019). Theory into practice. County lines, violence and changes to drug markets. Youth & Policy. https://www.youthandpolicy.org/articles/county-lines-violence-drug-markets/
2. Andell, P., & Pitts, J. (2018). The end of the line? The impact of county lines drug distribution on youth crime in a target destination. Youth & Policy. https://www.youthandpolicy.org/articles/the-end-of-the-line/
3. Anderson, E. (1999). Code of the street: Decency, violence, and the moral life of the inner city. W. W. Norton.
4. ATCM. (2018). County lines—A national summary & emerging best practice. https://www.local.gov.uk/sites/default/files/documents/County%20Lines%20National%20Summary%20-%20Simon%20Ford%20WEB.pdf
5. Bales, K., Hesketh, O., & Silverman, B. (2015). Modern slavery in the UK: How many victims? https://doi.org/10.1111/j.1740-9713.2015.00824.x