A Longitudinal Study of the Relationships among Marijuana/Hashish Use, Cocaine Use and Delinquency in a Cohort of High Risk Youths

Abstract

Study of the relationship between drug use and crime over time remains an important topic in the field. Data from a longitudinal study of detained juveniles are examined to address this issue. Results indicate that self-reported delinquent behavior and alcohol use prior to initial interview are key predictors of reported delinquent behavior during the 10- to 15-month follow-up period. However, self-reported drug use and urinalysis test results (measured at initial interview), and prior delinquent behavior are significant predictors of the use of marijuana/hashish and cocaine over time. The research and policy implications of these findings are drawn.