Roberts, Kay and Gilchrist, Gail and Cameron, Jacqui and Ahmed, Syed (2002) Evaluation of the greater Glasgow pharmacy needle exchange scheme 1997-2002. Edinburgh: Substance Misuse Division, Scottish Executive.

Taylor, Andy and Allen, Elizabeth and Hutchinson, Sharon and Roy, Kirsty and Goldberg, Raymond and Ahmed, Syed and Roberts, Kay (2005) Evaluation of the Lord Advocate's guidance on the distribution of sterile needles and syringes to injecting drug users. Edinburgh: Stationery Office.