Thanks are due to several people for their input and advice. In particular:
Harry Sumnall, Professor of Substance Use, Centre for Public Health, Liverpool John Moores University, Elinor Dickie, Public Health Adviser, NHS Health Scotland, John Davies, Emeritus Professor, University of Strathclyde and Ben Thurman of Mentor UK, for their help reviewing the report.
For enquiries about this publication, please contact: Fran Warren, Health and Social Care Analysis, Scottish Government. Telephone: 0131 244 2541; email: Frances.firstname.lastname@example.org