CrimeLens — FBI Crime Statistics by State & Year

Explore NIBRS/UCR data with AI-generated plain-language analysis

CrimeLens makes FBI Crime Data Explorer (NIBRS/UCR) data easy to explore. Pick any US state, choose an offense category, and set a year range to see annual incident counts, clearance rates, and how your state compares to the national average — all in seconds.

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What you can explore

• Annual incident counts for every NIBRS/UCR offense category, 1990–present
• Clearance rates compared to national averages, charted year by year
• AI-generated plain-language analysis of trends (powered by Claude)
• Data sourced directly from the FBI Crime Data Explorer API
• All 50 states plus Washington D.C.

How it works

Select a state, an offense type, and a year range in the sidebar, then click Analyze. CrimeLens queries the FBI API in real time, plots the results, and uses Claude to write a concise narrative summarising the trend.

Data source

All crime statistics come from the FBI Crime Data Explorer (National Incident-Based Reporting System / Uniform Crime Reports). Julie Connolly Research LLC does not modify the underlying figures.

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