National Archive of Criminal Justice Data
The National Archive of Criminal Justice Data (NACJD) is a branch of the Inter-university Consortium for Political and Social Research (ICPSR) at the University of Michigan. NACJD acquires, archives, processes, and provides access to computer-readable criminal justice data collections for research and instruction. The NACJD website, hosted and developed by the University of Michigan, provides downloadable access to over 550 criminal justice data collections free of charge. The data relates to penal law and criminal justice at US Federal and State levels.