Chicago Law Enforcement Arrest Data

Columns

• CB_NO: A unique CB number associated with each record. Values range from approximately 18.8 million to 30.2 million.
• CASE NUMBER: The case number for the arrest. Note that 39% of records are missing this information.
• ARREST DATE: The specific date an arrest was made, with records spanning from 1 January 2014 to 16 January 2023.
• RACE: Indicates the race of the arrestee. The most frequent category is Black (72%), followed by White Hispanic (18%), and Other (10%).
• CHARGE 1 STATUTE: The legal statute for the primary charge. The most common statute is 725 ILCS 5.0/110-3 (14%).
• CHARGE 1 DESCRIPTION: A description of the primary charge. "ISSUANCE OF WARRANT" is the most frequent description (14%).
• CHARGE 1 TYPE: The type of the first charge, with 'M' being the most common (51%). Approximately 22% of entries are missing for this column.
• CHARGE 1 CLASS: The classification of the first charge, with 'A' being the most common (44%).
• CHARGE 2 STATUTE: The legal statute for the second charge. This information is missing for 58% of records. When present, 725 ILCS 5.0/110-3 is the most common (5%).
• CHARGE 2 DESCRIPTION: A description of the second charge, also missing for 58% of records. "ISSUANCE OF WARRANT" is the most frequent description when available (5%).
• CHARGE 2 TYPE: The type of the second charge, missing for 76% of records. 'M' is the most common type when present (18%).
• CHARGE 2 CLASS: The classification of the second charge, missing for 58% of records. 'A' is the most common class when present (14%).
• CHARGE 3 STATUTE: The legal statute for the third charge, missing for 77% of records. 625 ILCS 5.0/3-707 is the most common when present (2%).
• CHARGE 3 DESCRIPTION: A description of the third charge, missing for 77% of records. "INSURANCE - OPERATE MTR VEHICLE WITHOUT" is the most frequent description when available (2%).
• CHARGE 3 TYPE: The type of the third charge, missing for 92% of records. 'M' is the most common type when present (6%).
• CHARGE 3 CLASS: The classification of the third charge, missing for 77% of records. 'L' is the most common class when present (7%).
• CHARGE 4 STATUTE: The legal statute for the fourth charge, missing for 87% of records. 625 ILCS 5.0/3-707-A is the most common when present (1%).
• CHARGE 4 DESCRIPTION: A description of the fourth charge, missing for 87% of records. "OPERATE UNINSURED MTR VEHICLE" is the most frequent description when available (1%).
• CHARGE 4 TYPE: The type of the fourth charge, missing for 97% of records. 'M' is the most common type when present (2%).
• CHARGE 4 CLASS: The classification of the fourth charge, missing for 87% of records. 'L' is the most common class when present (4%).
• CHARGES STATUTE: A combined field listing statutes for all charges. "725 ILCS 5.0/110-3 | | |" is the most frequent entry (12%).
• CHARGES DESCRIPTION: A combined field listing descriptions for all charges. "ISSUANCE OF WARRANT | | |" is the most frequent entry (12%).
• CHARGES TYPE: A combined field listing types for all charges. "M | | |" is the most frequent entry (39%).
• CHARGES CLASS: A combined field listing classes for all charges. "A | | |" is the most frequent entry (22%).

Distribution

Usage

• Analysing crime trends and patterns in Chicago.
• Supporting research into public safety initiatives and their impact.
• Informing urban planning and policy development.
• Conducting legal studies on arrest types and statutes.
• Investigating human rights concerns related to law enforcement activities.

Coverage

• Geographic: The dataset covers arrests executed within the City of Chicago.
• Time Range: Data spans from 1 January 2014 to 16 January 2023.
• Demographic: The data is restricted to adult arrestees, meaning individuals who were 18 years of age or older on the date of their arrest. Racial demographics are provided, showing Black individuals constitute 72% of arrestees, White Hispanic 18%, and other racial categories 10%. Records that have been expunged by the CPD are not included.

License

Who Can Use It

• Researchers: For academic studies on crime, policing, and urban sociology.
• Journalists: To investigate and report on law enforcement activities and crime statistics in Chicago.
• Policy Analysts: To inform evidence-based policy making related to criminal justice and public safety.
• Law Enforcement Agencies: For internal analysis of arrest patterns and operational effectiveness.
• Community Organisations: To advocate for social justice and understand local crime impacts.
• Individuals: With an interest in Chicago crime data and its societal implications.

Dataset Name Suggestions

• Chicago Adult Arrests (2014-2023)
• CPD Adult Arrest Records: A Decade
• Chicago Law Enforcement Arrest Data
• Adult Arrests in Chicago: 2014-2023
• Chicago Police Department Arrests Data

Attributes