Availability of IBR Data
In most states, incident-based data are collected through the FBI's Uniform Crime Reporting (UCR) Program. State programs in 47 states and 5 territories receive either summary or incident-based data from local law enforcement agenices and act as repositories for state data. The information compiled by these UCR Departments is forwarded to the FBI. In states without UCR (Indiana, Mississippi, and New Mexico), local law enforcement agencies send their data directly to FBI. Policies for disseminating IBR data may vary across states. Some states may have data available through the state repository or the UCR Program Web site.
State Statistical Analysis Centers (SACs) are agencies at the state level that use data and information from all components of the criminal justice system to conduct analyses of statewide and systemwide policy issues. There are currently SACs in 53 states and territories. The SACs vary in their placement within the state government structure. Some are within a criminal justice or general state planning or coordinating agency; some are part of a governor's advisory staff; and others are located in a line agency, such as the state police, attorney general's office, or department of corrections. Several SACs are housed in universities. Some SACs concentrate on collecting and distributing specific criminal justice-related data sets, others are involved in active research on policy issues, and some have been instrumental in the design and implementation of various policies and automated information systems.
The National Archive of Criminal Justice Data, part of the Inter-university Consortium for Political and Social Research (ICPSR), located within the Institute for Social Research at the University of Michigan, has NIBRS data available to download. Just visit NACJD's NIBRS Resource Guide and click on Data and File Specifications to access the available NIBRS files.
After downloading the data, use the syntax provided in Extracting Data from Incident-Based Systems and NIBRS to read the data into SPSS.
Next: Preparing Data for Analysis