The tool has three sections: Infrastructure, Data Use and Dissemination, and Indicators of Juvenile Justice System Involvement. This report addresses only the section on Indicators of Juvenile Justice System Involvement. This section of the tool pertains to a juvenile justice system’s “ability to produce process and outcome measures to describe youths’ involvement in the juvenile justice system.” The model upon which this section of the tool is based consists of the following three interrelated components: 1) counting, 2) responses, and 3) results. “Counting” focuses on the number of youth involved at various points of the system and the number of key system processing events, including arrests, admissions to detention, juvenile referrals to court, and dispositions. “Responses” consist of descriptions of the timeliness and equity with which the system responds to a youth’s behavior. “Results” involve the identification of changes in youth both during and after their involvement in the juvenile justice system. The current document presents the 26 questions the tool poses for users that enable them to determine the extent to which their data policies and uses conform with the aforementioned model.