About

Established in 1978, the National Archive of Criminal Justice Data (NACJD) provides free, comprehensive access to high-quality criminal justice datasets for researchers, policymakers, students, and other data users. Discover a wealth of information to advance knowledge, support innovative analysis, and promote evidence-based decision-making in the field of criminal justice.

NACJD is home to several large-scale and well-known datasets, including the National Crime Victimization Survey (NCVS), the FBI’s Uniform Crime Reports (UCR), the FBI’s National Incident-Based Reporting System (NIBRS), and the Project on Human Development in Chicago Neighborhoods (PHDCN).

In addition to making data available, NACJD curates and preserves data to ensure that they are accessible now and in the future. We also perform a number of outreach activities, including creating learning guides, hosting data workshops, and providing user support for our current and prospective data users and depositors.

Justice gavel on top of a book

Located within the Inter-University Consortium for Political and Social Research (ICPSR), a research center of the Institute for Social Research (ISR) at the University of Michigan, NACJD is sponsored by the Bureau of Justice Statistics (BJS), the National Institute of Justice (NIJ), and the Office of Juvenile Justice and Delinquency Prevention (OJJDP) of the United States Department of Justice.

We offer the following services to data depositors, data users, and the broader research community:

Data Depositor Services

  • Review of data management and sharing plans
  • Support for data governance and agreements
  • Technical assistance calls to plan deposit
  • Data review and guidance on data preparation

Data User Services

  • Technical assistance via email, phone, and video consultation
  • Restricted-use data application support
  • Assistance with finding and using NACJD data
  • Bibliographic support for all data in the NACJD archive

Contact NACJD

Contact NACJD by emailing icpsr-help@umich.edu. Please include “NACJD” in the subject line and provide specific information about your request, like a study title or restricted data application number, in the body of your message. A member of our team will respond within 1-2 business days.