The Source for Crime and Justice Data

Gang Involvement in "Rock" Cocaine Trafficking in Los Angeles, 1984-1985 (ICPSR 9398) RSS

Principal Investigator(s):

Summary:

The purpose of this data collection was to investigate the possible increase in gang involvement within cocaine and "rock" cocaine trafficking. Investigators also examined the relationships among gangs, cocaine trafficking, and increasing levels of violence. They attempted to determine the effects of increased gang involvement in cocaine distribution in terms of the location of an incident, the demographic profiles of suspects, and the level of firearm use. They also looked at issues such as whether the connection between gangs and cocaine trafficking yielded more drug-related violence, how the connection between gangs and cocaine trafficking affected police investigative processes such as intra-organizational communication and the use of special enforcement technologies, what kinds of working relationships were established between narcotics units and gang control units, and what the characteristics were of the rock trafficking and rock house technologies of the dealers. Part 1 (Sales Arrest Incident Data File) contains data for the cocaine sales arrest incidents. Part 2 (Single Incident Participant Data File) contains data for participants of the cocaine sales arrest incidents. Part 3 (Single Incident Participant Prior Arrest Data File) contains data for the prior arrests of the participants in the cocaine arrest incidents. Part 4 (Multiple Event Incident Data File) contains data for multiple event incidents. Part 5 (Multiple Event Arrest Incident Data File) contains data for arrest events in the multiple event incidents. Part 6 (Multiple Event Incident Participant Data File) contains data for the participants of the arrest events. Part 7 (Multiple Event Incident Prior Arrest Data File) contains data for the prior arrest history of the multiple event participants. Part 8 (Homicide Incident Data File) contains data for homicide incidents. Part 9 (Homicide Incident Suspect/Victim Data File) contains data for the suspects and victims of the homicide incidents. Major variables characterizing the various units of observation include evidence of gang involvement, presence of drugs, presence of a rock house, presence of firearms or other weapons, presence of violence, amount of cash taken as evidence, prior arrests, and law enforcement techniques.

Access Notes

  • These data are freely available.

Dataset(s)

DS0:  Study-Level Files
Documentation:
DS1:  Cocaine Sales: Arrest Incident - Download All Files (8.6 MB)
DS2:  Individual Participants: Arrest Incident - Download All Files (8.6 MB)
DS3:  Prior Arrest History - Download All Files (8.7 MB)
DS4:  Multiple Event Incident - Download All Files (7.8 MB)
DS5:  Single Event, Part of Multiple-Event Incident - Download All Files (7.9 MB)
DS6:  Individual Participants - Download All Files (7.9 MB)
DS7:  Prior Arrest History of Event Participants - Download All Files (7.9 MB)
DS8:  Homicide Incident - Download All Files (7.9 MB)
Data:
DS9:  Suspects or Victims of Homicide Incident - Download All Files (7.8 MB)
Data:

Study Description

Citation

Klein, Malcolm W., and Cheryl L. Maxson. GANG INVOLVEMENT IN "ROCK" COCAINE TRAFFICKING IN LOS ANGELES, 1984-1985. ICPSR09398-v1. Los Angeles, CA: University of Southern California, Social Science Research Institute, Center for Research on Crime and Social Control [producer], 1988. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2001. http://doi.org/10.3886/ICPSR09398.v1

Persistent URL:

Export Citation:

  • RIS (generic format for RefWorks, EndNote, etc.)
  • EndNote XML (EndNote X4.0.1 or higher)

Funding

This study was funded by:

  • United States Department of Justice. Office of Justice Programs. National Institute of Justice (85-IJ-CX-0057)

Scope of Study

Subject Terms:   cocaine, drug related crimes, drug traffic, gangs, law enforcement, police departments, police investigations, violence

Geographic Coverage:   California, Los Angeles, United States

Time Period:  

  • 1984--1985

Date of Collection:  

  • 1986--1987

Universe:   Cases were selected from arrest logs in the five police stations in two jurisdictions of Los Angeles County. The two jurisdictions were not selected to be representative of any geographic area. Instead, the investigators sought to capture the phenomena of interest at their highest points of concentration.

Data Types:   event/transaction data, and administrative data

Data Collection Notes:

The codebook is provided as a Portable Document Format (PDF) file. The PDF file format was developed by Adobe Systems Incorporated and can be accessed using PDF reader software, such as the Adobe Acrobat Reader. Information on how to obtain a copy of the Acrobat Reader is provided on the ICPSR Web site.

Methodology

Sample:   All arrests of gang members for homicide and for sale of cocaine or possession for sale were included in the sample. An equal number of nongang cases was selected randomly in proportion to each station's contribution to the total number of nongang arrests for each year. Nongang cocaine cases were oversampled.

Data Source:

police investigation files for cocaine sales and homicide incidents

Extent of Processing:  ICPSR data undergo a confidentiality review and are altered when necessary to limit the risk of disclosure. ICPSR also routinely creates ready-to-go data files along with setups in the major statistical software formats as well as standard codebooks to accompany the data. In addition to these procedures, ICPSR performed the following processing steps for this data collection:

  • Standardized missing values.

Version(s)

Original ICPSR Release:  

Version History:

  • 2006-03-30 File CB9398.ALL.PDF was removed from any previous datasets and flagged as a study-level file, so that it will accompany all downloads.
  • 2005-11-04 On 2005-03-14 new files were added to one or more datasets. These files included additional setup files as well as one or more of the following: SAS program, SAS transport, SPSS portable, and Stata system files. The metadata record was revised 2005-11-04 to reflect these additions.
  • 2002-03-29 The original hardcopy documentation for this data collection was converted to Portable Document Format (PDF), and SAS and SPSS data definition statements were created for each of the nine parts.
  • 2002-03-29 The original hardcopy documentation for this data collection was converted to Portable Document Format (PDF), and SAS and SPSS data definition statements were created for each of the nine parts.

Related Publications ?

Utilities

Metadata Exports

If you're looking for collection-level metadata rather than an individual metadata record, please visit our Metadata Records page.

Download Statistics