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All 287,412 Chicago Police Department traffic stops from 2024, the city's first release under the 2024 Transparency Act.
The full 287,412-record CPD 2024 traffic-stop release, the district-level demographic crosswalk, hourly volume aggregates, and replication code for the outcome and veil-of-darkness tests. The raw release is on the Chicago Data Portal; our cleaned archive is in preparation.
Officer badge numbers were withheld at source.
The cleaned Rooted Forward replication archive for this paper is in preparation. Until it is released, every record below traces to a public upstream source. These are the same files we draw on, hosted by their primary publishers.
Files in the archive
cpd-stops-2024.csv
287,412 stops with 15 fields each.
cpd-district-crosswalk.csv
22 districts with 2023 ACS demographic composition.
cpd-outcome-test.R
Knowles-Persico-Todd outcome-test implementation.
cpd-vod-check.R
Veil-of-darkness robustness check.
License
Data CC BY 4.0, code MIT.
Provenance
The columns and types you can expect once the archive is live. Sample rows are intentionally omitted; we publish only verified records, not synthetic placeholders.
Schema · 6 columns · no sample rows
| Column | Type | Description |
|---|---|---|
| stop_date | date | |
| district | int | |
| stop_reason | text | |
| driver_race | text | Officer-recorded |
| search_conducted | boolean |
| contraband_recovered | boolean |