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American Terrorism Study, 1980-2002 (ICPSR 4639)

Released/updated on: 2007-07-30
Geographic coverage: United States
Time period: 1980-01-01--2002-08-01
This study was conducted in response to a lack of existing data collections relating specifically to acts of American terrorism. A primary goal of the study was to create an empirical database from which criminological theories and governmental policies could be effectively evaluated. The American Terrorism Study began in 1989 when the Federal Bureau of Investigation's (FBI) Terrorist Research and Analytical Center released a list of persons indicted as a result of investigation under the FBI's Counterterrorism Program. Since that time, FBI has released additional lists to the principal investigators. After receiving a list of persons indicted in federal criminal court as a result of an official terrorism investigation, the researchers reviewed the cases at either the federal district court where the cases were tried or at the federal regional records center where the cases were archived. The researchers divided the dataset into five distinct datasets. Part 1, Counts Data, provides data on every count for each indictee in each indictment. This is the basic dataset. There were 7,306 counts from 1980 to 2002. Part 2, Indictees Data, provides data on each of the 574 indictees from 1980-2002. Part 3, Persons Data, provides data on the 510 individuals who were indicted by the federal government as a result of a terrorism investigation. Part 4, Cases Data, provides one line of data for each of the 172 criminal terrorism cases that resulted from a federal terrorism investigation. Part 5, Group Data, provides one line of case data for each of the 85 groups that were tried in federal court for terrorism-related activity. Each of the five datasets includes information on approximately 80 variables divided into four major categories: (1) demographic information, (2) information about the terrorist group to which the individual belongs, (3) prosecution and defense data, and (4) count/case outcome and sentencing data.
Curated

Assessing the Validity of Voice Stress Analysis (VSA) Tools in a Jail Setting in Oklahoma City, Oklahoma, 2006 (ICPSR 20625)

Released/updated on: 2008-06-23
Geographic coverage: Oklahoma City, United States, Oklahoma
Time period: 2006-02-28--2006-03-24
The purpose of the project was to assess the validity of two Voice Stress Analysis (VSA) tools currently on the market: the Layered Voice Analysis (LVA) and the Computer Voice Stress Analyzer (CVSA). The methodology and sampling protocols for this study were derived from the pre-existing methodology and sampling techniques employed in the National Institute of Justice-funded Arrestee Drug Abuse Monitoring (ADAM) program that operated in Oklahoma County from 1998 to 2004. The researchers interviewed arrestees in the Oklahoma County jail about their recent illicit drug use during the months of February and March 2006. The VSA data collected using each of the software systems in this study were sent to certified examiners from CVSA and LVA for their analysis. After the completion of the interview, the subjects were asked to complete the data collection process by supplying urine specimens. Answers from the 319 respondents were compared to the results of a urinalysis test to determine the extent to which they were being deceptive. Then, their "actual deceptiveness" was compared to the extent to which deception was indicated by the VSA programs. The dataset contains (1) demographic information obtained from the official booking records, (2) responses to survey questions about recent drug use, (3) the results of a urinalysis test on five drugs, (4) variables recording "deception" or "no deception" on each of the drugs, and (5) decisions by novice and expert analysts regarding the indication of deception.
Curated

Assessment of Defense and Prosecutorial Strategies in Terrorism Trials in the United States, 1980-2004 (ICPSR 26241)

Released/updated on: 2014-11-11
Geographic coverage: United States
Time period: 1980-01-01--2004-01-01
This study created a flat-file database of information regarding defendants who were referred to United States Attorneys by the Federal Bureau of Investigation (FBI) following official terrorism investigations between 1980 and 2004. Its ultimate goal was to provide state and federal prosecutors with empirical information that could assist federal and state prosecutors with more effective strategies for prosecution of terrorism cases. The results of this study enhanced the existing 78 variables in the AMERICAN TERRORISM STUDY, 1980-2002 (ICPSR 4639) database by adding the 162 variables from the Prosecution and Defense Strategies (PADS) database. The variables in the PADS database track information regarding important pleadings, motions, and other key events that occur in federal terrorism trials; the PADS variables measure the strategies used by legal counsel as well as other legal nuances.
Curated

Examination of Homicides in Houston, Texas, 1985-1994 (ICPSR 3399)

Released/updated on: 2005-11-04
Geographic coverage: United States, Texas, Houston
Time period: 1985-01-01--1994-01-01
As a contribution to nationwide efforts to more thoroughly understand urban violence, this study was conducted to assess the impact of cultural dynamics on homicide rates in Houston, Texas, and to profile homicides in the city from 1985 to 1994. This data collection provides the results of quantitative analysis of data collected from all Houston homicide cases recorded in the police murder logs for 1985-1994. Variables describe the homicide circumstances, the victim-offender relationship, the type of weapon used, and any drug- or gang-related activity involved. Other variables include the year and month in which the homicide occurred, whether the homicide occurred on a weekday or over the weekend, the motive of the homicide, whether the homicide was drug-related, whether the case was cleared by police at time of data entry, weapon type and means of killing, the relationship between the victim and the offender, whether a firearm was the homicide method, whether it was a multiple victim incident or multiple offender incident, whether the victim or the offender was younger than age 15, and the inter-racial relationship between the victim and the offender. Demographic variables include age, sex, and race of the victim as well as the offender.
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