The Taming of Cocaine II is the result of a follow-up study of 77 cocaine and crack users from the original ethnographic study after 6 years. This longitudinal design adds to the value of earlier findings about cocaine use in the life course of individuals. This book offers further detailed information about the rules drug users live by, the development of drug use patterns, and different cohort, age and period effects on behavioural and attitudinal changes. The findings of a longitudinal study such as this also provide a sounder basis for underpinning drug policies and treatments.