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Description & Citation--Study No. 6399 | |
Bibliographic Description | |
| ICPSR Study No.: | 6399 |
|---|---|
| Title: | Homicides in Chicago, 1965-1995 |
| Principal Investigator(s): | Carolyn Rebecca Block, Illinois Criminal Justice Information Authority |
| Richard L. Block, Loyola University Chicago | |
| Illinois Criminal Justice Information Authority | |
| Funding Agency: | United States Department of Justice. National Institute of Justice |
| Ford Foundation | |
| United States Department of Justice. Bureau of Justice Statistics | |
| United States Department of Health and Human Services, National Institutes of Health, National Institute of Mental Health | |
| Harry Frank Guggenheim Foundation | |
| National Institute of Occupational Safety and Health | |
| Joyce Foundation | |
| Grant Number: | 3960D |
| 1R01M27575 | |
| Bibliographic Citation: | Block, Carolyn Rebecca, Richard L. Block, and the Illinois Criminal Justice Information Authority. HOMICIDES IN CHICAGO, 1965-1995 [Computer file]. ICPSR06399-v5. Chicago, IL: Illinois Criminal Justice Information Authority [producer], 1998. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2005-07-06. |
Scope of Study | |
| Summary: | These datasets contain information on every homicide in the murder analysis files of the Chicago Police Department for the years 1965-1995. For the victim-level file, Part 1, data are provided on the relationship of victim to offender, whether the victim or offender had previously committed a violent or nonviolent offense, time of occurrence and place of homicide, type of weapon used, cause and motivation for the incident, whether the incident involved drugs, alcohol, gangs, child abuse, or a domestic relationship, if or how the offender was identified, and information on the death of the offender(s). Demographic variables such as the age, sex, and race of each victim and offender are also provided. The victim-level file contains one record for each victim. Information for up to five offenders is included on each victim record. The same offender information is duplicated depending on the number of victims. For example, if a sole offender is responsible for five victims, the file contains five victim records with the offender's information repeated on each record. Part 2, Offender-Level Data, is provided to allow the creation of offender rates and risk analysis that could not be accurately prepared using the victim-level file due to the repeating of the offender information on each victim record. Offender variables were reorganized during the creation of the offender file so that each known offender is associated with a single record. A majority of the variables in the offender-level file are replicas of variables in the victim-level file. The offender records contain demographic information about the offender, demographic and relationship information about the offender's first victim (or sole victim if there was only one), and information about the homicide incident. Information pertaining to the homicide incident such as location, weapon, or drug use are the same as in the victim-level file. In cases where the offender data were completely missing in the victim-level data, no offender records were generated in the offender-level file. The offender-level data do not contain information about the victims in these cases. Geographic variables in both files include the census tract, community area, police district, and police area. |
| Subject Term(s): | criminal histories, demographic characteristics, homicide, murder, offenders, police departments, relationships, victims, weapons |
| Smallest Geographic Unit: | city, census tract, community area, police beat, police district |
| Geographic Coverage: | Chicago, Illinois, United States |
| Time Period: | 1965 - 1995 |
| Date(s) of Collection: | 1968 - 1996 |
| Unit of Observation: | individuals |
| Universe: | All homicides in the murder analysis files of the Chicago Police Department from 1965 through 1995. |
| Data Type: | event/transaction data |
| Data Collection Notes: | HOMICIDES IN CHICAGO, 1965-1981 (ICPSR 8941) is no longer available. Users interested in the data from ICPSR 8941 should obtain ICPSR 6399 instead. |
Methodology | |
| Data Source: | Chicago Police Department records |
Access and Availability | |
| Note: | A list of the data formats available for this study can be found in the summary of holdings. Detailed file-level information (such as LRECL, case count, and variable count) is listed in the file manifest. |
| Restrictions: | To protect respondent privacy, certain identifying information is restricted from general dissemination. Specifically, day of death and day of injury were blanked and victim and offender ages were recoded to age categories for reasons of confidentiality. Users interested in obtaining these data must complete a Data Transfer Agreement Form and specify the reasons for the request. A copy of the Data Transfer Agreement Form can be requested by calling 800-999-0960. The Data Transfer Agreement Form is also available as a Portable Document Format (PDF) file from the NACJD Web site (link). Completed forms should be returned to: Director, National Archive of Criminal Justice Data, Inter-university Consortium for Political and Social Research, Institute for Social Research, P.O. Box 1248, University of Michigan, Ann Arbor, MI 48106-1248, or by fax: 734-647-8200. |
| Original ICPSR Release: | 1995-01-11 |
| Version History: | The last update of this study occurred on 2005-07-06. |
| 2005-07-06 - For both Parts 1 and 2 day of death and day of injury were blanked and victim and offender ages were recoded to age categories for reasons of confidentiality. Files containing these data are now available only through the Restricted Access Archive. | |
| 1998-10-15 - Part 2, Offender-Level Data, has been added, and the documentation and data definition statements were augmented to include the offender-level data. In addition, a small number of corrections were made to the victim-level file (Part 1). | |
| 1997-12-12 - The data, documentation, and data definition statements were augmented to include the year 1995. | |
| Dataset(s): |
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