Updated on August 2016 to include sample-based race/ethncity data for the period 2006-2013.
About the DMC Databook
With the August 2016 update, the following new features have been added to the National DMC Databook:
NOTE: With the August 2016 update, youth population data were revised to include the latest national estimates. Prior to August 2016, 2012 arrest estimates were duplicated for the "by race" and "be gender" tables for 2013 since estimates for 2013 were not yet available. With the August 2016 update, arrest estimates developed by NCJJ have been added to the "by race" and "by gender" tables.
The National Disproportionate Minority Contact (DMC) Databook is designed to give users an understanding of the Relative Rate Index (RRI) and an assessment of the levels of disproportionate minority contact at various stages of juvenile justice system processing at the national level. New users should review the sections entitled "What is an RRI?" and "Constructing an RRI Matrix". The first briefly discusses the benefits in using an RRI Matrix to investigate disproportionate minority contact within a jurisdiction. The second discusses how an RRI Matrix can be prepared using available information and the compromises that at times need to occur. For a more detailed discussion of these topics, users are encouraged to review Chapter One of the online Disproportionate Minority Contact Technical Assistance Manual.
In the National DMC Databook, users can review the raw counts and rates that characterize the processing of delinquency cases by the juvenile justice system and then study the RRI Matrix that helps to pinpoint and quantify the levels of racial disparity introduced at various decision points with the system. For those who need assistance, some possible interpretations of the most current RRI Matrices are given, as are interpretations of the trends in the level of disparity for each decision point. It is hoped that users can develop a better understanding of the RRIs from these interpretations and can apply this understanding when studying the many other RRIs that are available for review in this data dissemination tool or the RRIs developed locally to capture the nature of disproportionate minority contact in their own communities.
Developed and maintained by the National Center for Juvenile Justice, with funding from the Office of Juvenile Justice and Delinquency Prevention (OJJDP), Office of Justice Programs, U.S. Department of Justice.