NCJ Number
106519
Date Published
1986
Length
10 pages
Annotation
Two longitudinal studies conducted by the author and Thorsten Sellen illustrate how the statistical analysis of data on the initiation, progression, and cessation of juvenile offending can be used in policymaking to improve the effectiveness and the efficiency of the juvenile justice system.
Abstract
Each study involved a birth cohort. Birth Cohort 1 consisted of 9,945 males born in 1945 and living in Philadelphia from at least age 10 to age 18. Birth Cohort 2 included 28,000 males and females born in 1958. The analysis showed that about 35 percent of the males had at least one arrest before reaching age 18. Most of the offenses were committed by only 6 to 7 percent of the cohorts, however. Forty-seven percent of the youths stopped offending after the first offense, and 38 percent stopped after the second offense. The handling after the arrest had no effect on the results. Interviews with criminal justice officials and university students were also used to develop offense seriousness scales. The findings were part of the basis used to develop career criminal programs. In addition, the Office of Juvenile Justice and Delinquency Prevention has recently started a program focusing on serious violent habitual juvenile offenders. These programs focus resources on the violent few and emphasize incapacitation, thereby improving both efficiency and effectiveness of justice. The studies' findings have also led to the author's recommendation that juvenile records be used in adult proceedings, so that chronic serious offenders can be identified when they commit their first offenses as adults.