Seattle Police Arrest Reports with Subject and Officer Demographics

12 types of arrest are captured in the source system, including physical arrests, warrants, and summons. The dataset includes counts of arrest reports written, which are distinct from physical, in-custody events. It is published by the City of Seattle via the Socrata platform and was last updated on May 28, 2026.

Use Cases

• Analyzing arrest type frequency and trends using Arrest Type, Arrest Reported Date/Time, and Offense Type from 30 available columns.
• Investigating demographic disparities in policing using Subject Race, Subject Gender, Subject Age Range, Officer Race, and Officer Gender.
• Mapping police activity and precinct-level patterns using Precinct, Neighborhood, Census Block 2020, Latitude, and Longitude.
• Studying the context of arrests using columns like Force Involved, Terry Stop Involved, Crisis Involved, and Demonstration.

Strengths

• Captures 12 distinct types of arrest events, providing granularity.
• Includes over 30 columns covering subject and officer demographics, location, and incident context.
• Contains geospatial coordinates (Latitude, Longitude) and census block identifiers for mapping.

Limitations

• Row count is unknown, which may limit suitability assessment.
• Description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

City of Seattle (cos-data.seattle.gov)

Collection Method

Documented in the RMS (Mark43) system under the current business process for seizures under probable cause.

Freshness

Last updated 2026-05-28 15:08:50; freshness should be verified.

Geography

Seattle, Washington, USA, as suggested by precinct and neighborhood columns.