A different model of justice is assumed to be reflected in the prosecution of adolescents in juvenile jurisdictions compared to criminal jurisdictions, with a juvenile justice model in the juvenile jurisdiction and a criminal justice model in the criminal jurisdiction. These two models of justice are believed to be very different from one another across three dimensions: formality of case processing, evaluation of defendants, and punishment. This research project compared the prosecution and punishment of adolescent felony offenders in the New Jersey juvenile jurisdiction and the New York criminal jurisdiction to determine whether these two models of justice varied across the two jurisdiction types. Data from this collection were used by the researcher only to examine the dimension of punishment severity across jurisdiction types and across courts within each jurisdiction type. Data were collected on comparable cases of adolescent felony offenders from counties in New Jersey and New York. Due to the very different boundaries between juvenile and criminal jurisdictions in these adjacent states, the data include cases (matched by offense and offender age) in New Jersey's juvenile jurisdiction and New York's criminal jurisdiction. Cases of 15- and 16-year-old defendants who had been charged with aggravated assault, robbery, or burglary in three counties of New Jersey and three counties of New York City in 1992 and 1993 were sampled. Variables include offender characteristics, such as age at offense, sex, race, and ethnicity, offense characteristics, court action and sentencing information, state, and county.