Seven main types of information on serious juvenile offenders processed in adult courts are provided in the report: (1) arrest; (2) criminal court (CC) arraignment; (3) CC disposition; (4) supreme court (SC) first appearance; (5) SC disposition; (6) SC sentence; and (7) failure-to-appear rates. The data indicates that there were 1,644 juvenile arrests between January and December 2004 and that 1 out of every 3 of these arrests were filed in adult court. The type of arrest varied somewhat across boroughs but second-degree robbery was the most frequent charge in every borough. Approximately half the cases disposed in CC were not transferred to the SC. In total, there were 580 juvenile cases arraigned in CC during 2004 with half the arraignment charges for first-degree robbery and another third for second-degree robbery. A total of 615 of these CC cases reached disposition in CC. Among the 294 juvenile cases that reached the SC during 2004, a total of 244 reached disposition in SC. Of the SC dispositions for juvenile offenders, 85 percent resulted in conviction and a total of 227 sentences were handed out. Over half the sentences for juvenile offenders reaching the SC were custodial in nature. At each decision point, differences in juvenile case processing between boroughs of New York are presented. Data were drawn from New York City’s Criminal Justice Agency, Inc. (CJA) database, which contains information on arrest, case processing, and case outcomes for most New York arrestees. Footnotes, exhibits, tables, appendix