What share of each agency's officer-initiated vehicle stops ended in a citation, and what share in an arrest.
The two CAD systems record outcomes differently. Sarpy County writes WRITTEN WARNING and CITATION explicitly; Council Bluffs folds most non-citation outcomes into “Handled by Officer.” An agency that records warnings less thoroughly shows a higher citation rate for that reason alone. Omaha PD publishes no stop or disposition data at all and is absent here.
Where vehicle stops happen relative to automated licence plate readers, against every other call handled by the same agencies as a baseline. Both lines are shares of their own series, so the gap between them is what matters.
The two lines nearly overlap, and that is the finding. Stops sit marginally closer to cameras than the same agencies' other calls — 14.7% against 12.4% within 200 m — but the median distance is 805 m for stops and 780 m for everything else. There is no meaningful separation here.
Comparing stops against every incident in the archive instead produces a much larger gap, 2.6× within 200 m. That gap is an artifact: most of the archive is Omaha, a city that reports no stops at all, so the comparison was measuring the difference between two geographies rather than between stops and other calls. Restricting the baseline to the five agencies that actually report stops removes it.
All three metro Flock transparency portals list traffic enforcement under prohibited uses. On this measure, at this resolution, nothing here contradicts that. It is a weak instrument — cameras and enforcement both concentrate on arterial roads, and camera locations are volunteer-mapped and incomplete — so it cannot clear an agency either.
Vehicle stops aggregated onto a grid, with every mapped ALPR camera drawn on top.
Outlines are city limits from Douglas County and Sarpy County GIS, with the Douglas County line dashed. Council Bluffs sits in Pottawattamie County, Iowa, which publishes neither, so it has no outline. Omaha is blank because Omaha PD publishes no stop data — the empty area is a gap in what the city reports, not an absence of stops. Camera locations come from OpenStreetMap, mapped by volunteers through the DeFlock project, and are certainly incomplete: Council Bluffs, Sarpy County and Douglas County together report 89 cameras on their own portals, and those three are not the only agencies running them.
Incidents per week, each agency on its own scale. Omaha PD's record begins in 2022; the Sarpy County and Council Bluffs feeds each serve a rolling twelve months, so their history starts when this archive started keeping it.
Ralston PD publishes no machine-readable feed and does not appear anywhere on this page. Gretna and Springfield appear in the Sarpy County feed as fire departments only; their police departments do not report to it. Each feed uses its own incident taxonomy and none of them are comparable to each other, so nothing here counts “crime” across agencies — only what each agency itself published.