Acknowledgements

I am grateful for advice from many people who have talked to me about cannabis, some of whom are experienced users of this drug.

I should also like to thank Don Aitken, John Kaplan, Desmond Banks, and David Pedley who read the manuscript and made several useful suggestions. I owe a special debt to Anthony Skyrme for valuable comments and assistance. Bryn Ellis deserves particular thanks for his meticulous assistance during the preparation of the manuscript in its various drafts.

The publishers and I are indebted to: Bobbs-Merrill Inc. and Panther Books Ltd for permission to quote from The Marihuana Papers edited by David Solomon; the editor of the Guardian for permission to use part of an article on the use of cannabis; the editor of the Daily Mirror for permission to reproduce an article in an early issue; the Law Society for permission to quote from their evidence to the sub-committee on Powers of Search and Arrest.