Chicago Police Department Adult Arrest Records

Arrest records processed by the Chicago Police Department's CLEAR Automated Arrest system, limited to arrestees aged 18 or older. Each record includes up to four charges ordered by severity, with the most severe listed as CHARGE1. Data excludes records expunged under Illinois law.

Use Cases

• Analyze arrest patterns by charge severity using the ordered CHARGE1 through CHARGE4 fields.
• Filter for specific offenses using concatenated charge characteristic columns with the '|' separator.
• Study adult arrest demographics and processes as defined by CPD directives like Special Order S06-01-11.

Strengths

• Data originates from the official CPD CLEAR Automated Arrest system, ensuring authoritative sourcing.
• Records include up to four charges per arrest, ordered by severity to highlight the most serious offense.
• Concatenated charge characteristic columns allow for efficient filtering across multiple charge fields.

Limitations

• Dataset is limited to adult arrests only, excluding all juvenile arrest records.
• Excludes arrest records that have been expunged by CPD, which may bias historical trend analysis.
• Specific row count, column count, and temporal coverage are not provided in the input.

Provenance

Source

Chicago Police Department (CPD) CLEAR Automated Arrest application.

Collection Method

Electronic processing of arrests Department-wide via the CPD CLEAR system.

Time Range

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Freshness

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Geography

City of Chicago, Illinois, USA.