Enforcement outcomes are closely associated with the stated reason for a stop. Some stop categories end primarily in warnings or citations, while others show a much higher arrest share, suggesting that what happens after a stop is structured rather than uniform.
The search hit rate — how often a search actually finds contraband — also varies significantly by stop reason, raising questions about whether searches are being applied consistently across stop types.
| Stop Reason | Total Stops | Warning % | Citation % | Arrest % | Search Hit Rate |
|---|
Each bubble: x = arrest rate (%), y = search rate (%), vertical axis 30–100%. Uniform size; deeper orange = more total stops for that reason. Click a reason below to show only that bubble; click it again to show all.
Each bubble encodes one stop reason. Horizontal position shows arrest share and vertical position shows how often officers search (axis trimmed to 30–100% to separate the main cluster). Bubble size is fixed; richer orange indicates a larger volume of stops for that reason citywide.
Hit rate measures whether a search finds contraband. Hit rates vary sharply by stop reason: targeted stops such as warrants are highly effective, while routine traffic-related stops rarely yield contraband.
Post-stop outcomes are not evenly distributed. The data suggests that both the reason for the stop and the characteristics of the stopped population are associated with different enforcement results, making outcome analysis central to the larger StopAtlas story.