-0.545 pearson_r verified

Correlation (Pearson r) between state-level mapped ALPR camera density per 100k and 2025 violent crime clearance rate, across 51 states

as of 2026-08-17 · license: ODbL

FBI Crime Data Explorer — NIBRS summarized state clearance rates (api.usa.gov/crime/fbi/cde)
https://cde.ucr.cjis.gov/
retrieved 2026-08-17

Pearson correlation of cameras_per_100k vs violent_clearance_2025 across all 51 rows

from: data/camera-clearance-join.json

Underlying camera locations are volunteer-crowdsourced (DeFlock/OSM), not verified by any camera operator or government body -- likely incomplete, possibly outdated or inaccurate (see repo TERMS.md).
This figure is a state-level join (FBI CDE summarized API). Camera-dense states skew urban with structurally different caseloads/clearance baselines regardless of camera presence, and a given year's clearances are not necessarily for offenses reported that year. Correlation, not causation. See the county-level figures for the same question at county granularity.