Contents: 1. Introduction -- 2. Research Methods and Respondent Characteristics -- 3. Adolescents' Perspectives on the Relationship between Drugs/Alcohol and Crime -- 4. Drug Selling and Dealing among Adolescents -- 5. Theft and the Consumeristic Mentality -- 6. The Context of Violence -- 7. Delinquents' Perspectives on the Role of the Victim -- 8. Case Studies of Youths at Risk in Early Adolescence -- 9. Case Studies of Seriously Involved Youths -- 10. Experimentation versus Commitment -- 11. The Deterrent Effect of Adult versus Juvenile Jurisdiction -- 12. Summary and conclusion