Data Download

Agencies in the Crime Index sample publish data through either Uniform Crime Report Part I or National Incident-Based Reporting System (NIBRS) categorizations. NIBRS offers more offense types than are available through UCR Part I so NIBRS offenses have been translated to match their Part I counterparts to ensure a generally apples-to-apples comparison across agencies regardless of reporting system. A previous study by the FBI showed that transitioning from UCR Part I to NIBRS reporting can lead to a small increase in property crimes with minimal impact on violent crimes. Offense definitions can also be found on the FBI’s website.

• The Crime Index Github Repository
• Submit Data
• FBI Offense Definitions
• FBI Study: “Effects of NIBRS on Crime Statistics” (Fall 2015)
• Contact Us if you see a mistake, are aware of a new potential data source, or wish to have your agency or state participate.