Summary
From their website, "The Chicago Police Department developed CLEARmap to provide residents of the City of Chicago with a tool to assist them in problem-solving and combating crime and disorder in their neighborhoods. It is based upon the CLEAR (Citizen Law Enforcement Analysis and Reporting) system developed by the Department for use by its police officers."

The CPD does not make raw data files of the crime data contained in the CLEAR database available to the public. Rather, it provides a searchable online database with mapping capabilities (CLEARmap).

Author or Organization
Chicago Police Department

Geographic Area Covered and Level of Analysis
City of Chicago; data can be displayed by Census Tract, Community Area, Police Beat, Police District, or Ward

Year(s)
Data can be displayed for the last 3, 6, 9, or 12 months, and is only retained for the past 365 days.

Sample Size, Design, and Methodology
New crimes committed within the City of Chicago are posted daily.

Variables Covered
Crimes are sorted according to a large number of different types.

Other Sources of Similar Information
Chicagocrime.org maintains a database that displays maps, graphs, and crime data obtained from the CLEARmap site by Crime Type, Street, Date, Police district/beat, ZIP code, Ward, and Block.

As of November 2, 2005, chicagocrime.org has begun archiving data beyond the one year limit.

External Links
ClearMAP homepage