SARAH MARS is the Qualitative Project Director, Heroin Price and Purity Outcomes Study, at the University of San Francisco, California. She read history at Emmanuel College, Cambridge, UK, and received a PhD from the University of London. Since contributing to various drug policy reports, she has worked on the history of drugs, alcohol and tobacco at the University of California, San Francisco and London School of Hygiene and Tropical Medicine.

• List of Tables List of Figures Acknowledgements Glossary List of Abbreviations Introduction 1965-2010: A Background Sketch Prescribing and Proscribing: The Treatment and Rehabilitation Report Defining 'Good Clinical Practice' Ambiguous Justice: The General Medical Council and Dr Ann Dally 'Friendly' visits and 'Evil Men': The Home Office Drugs Inspectorate Unifying Hierarchs and Fragmenting Individualists: Three Professional Groups Guidelines and the Licensing Question Conclusion Appendix Bibliography Index