데이터셋 상세
미국
Investigation and Prosecution of Homicide Cases in the United States, 1995-2000: The Process for Federal Involvement
This study addressed questions related to potential geographic and racial disparity in the investigation and prosecution of federal capital cases and examined the process by which criminal cases, specially homicide cases, enter the federal criminal justice system. The primary method of data collection used was face-to-face interviews of key criminal justice officials within each district included in the study. Between 2000 and 2004, the researchers visited nine federal districts and interviewed all actors in the state and federal criminal justice systems who potentially would play a role in determining whether a homicide case was investigated and prosecuted in the state or federal systems. The study focused on homicide cases because federal homicides represented the offense of conviction in all capital case convictions in the federal system under the 2000 and 2001 DOJ reports (see U.S. Department of Justice, "The Federal Death Penalty System: A Statistical Survey (1988-2000)," Washington, DC: U.S. Department of Justice, September 12, 2000, and U.S. Department of Justice, "The Federal Death Penalty System: Supplementary Data, Analysis and Revised Protocols for Capital Case Review," Washington, DC: U.S. Department of Justice, June 6, 2001). In addition, federally related homicides are frequently involved with drug, gang, and/or organized crime investigations. Using 11 standardized interview protocols, developed in consultation with members of the project's advisory group, research staff interviewed local investigative agencies (police chief or his/her representative, section heads for homicide, drug, gang, or organized crime units as applicable to the agency structure), federal investigative agencies (Special Agent-in-Charge or designee, section heads of relevant units), local prosecutors (District Attorney, Assistant District Attorney, including the line attorneys and section heads), and defense attorneys who practiced in federal court. Due to the extensive number of issues to be covered with the U.S. Attorneys' Offices, interviews were conducted with: (1) the U.S. Attorney or designated representative, (2) section heads, and (3) Assistant U.S. Attorneys (AUSAs) within the respective sections. Because the U.S. Attorneys were appointed following the change in the U.S. Presidency in 2000, a slightly altered U.S. Attorney questionnaire was designed for interviews with the former U.S. Attorney who was in office during the study period of 1995 through 2000. In some instances, because the project focus was on issues and processes from 1995 through 2000, a second individual with longer tenure was chosen to be interviewed simultaneously when the head or section head was newer to the position. In some instances when a key respondent was unavailable during the site visit and no acceptable alternative could be identified, arrangements were made to complete the interview by telephone after the visit. The interviews included questions related to the nature of the local crime problem, agency crime priorities, perceived benefits of the federal over the local process, local and federal resources, nature and target of joint task forces, relationships between and among agencies, policy and agreements, definitions and understanding of federal jurisdiction, federal investigative strategies, case flow, and attitudes toward the death penalty.
연관 데이터
Race and the Decision to Seek the Death Penalty in Federal Cases, 1995-2000 [United States]
공공데이터포털
The purpose of this project was to examine possible defendant and victim race effects in capital decisions in the federal system. Per the terms of their grant, the researchers selected cases that were handled under the revised Death Penalty Protocol of 1995 and were processed during Attorney General Janet Reno's term in office. The researchers began the project by examining a sample of Department of Justice Capital Case Unit (CCU) case files. These files contained documents submitted by the United States Attorney's Office (USAO), a copy of the indictment, a copy of the Attorney General's Review Committee on Capital Cases (AGRC's) draft and final memorandum to the Attorney General (AG), and a copy of the AG's decision letter. Next, they created a list of the types of data that would be feasible and desirable to collect and constructed a case abstraction form and coding rules for recording data on victims, defendants, and case characteristics from the CCU's hard-copy case files. The record abstractors did not have access to information about defendant or victim gender or race. Victim and defendant race and gender data were obtained from the CCU's electronic files. Five specially trained coders used the case abstraction forms to record and enter salient information in the CCU hard-copy files into a database. Coders worked on only one case at a time. The resulting database contains 312 cases for which defendant- and victim-race data were available for the 94 federal judicial districts. These cases were received by the CCU between January 1, 1995 and July 31, 2000, and for which the AG at the time had made a decision about whether to seek the death penalty prior to December 31, 2000. The 312 cases includes a total of 652 defendants (see SAMPLING for cases not included). The AG made a seek/not-seek decision for 600 of the defendants, with the difference between the counts stemming mainly from defendants pleading guilty prior to the AG making a charging decision. The database was structured to allow researchers to examine two stages in the federal prosecution process, namely the USAO recommendation to seek or not to seek the death penalty and the final AG charging decision. Finally, dispositions (e.g., sentence imposed) were obtained for all but 12 of the defendants in the database. Variables include data about the defendants and victims such as age, gender, race/ethnicity, employment, education, marital status, and the relationship between the defendant and victim. Data are provided on the defendant's citizenship (United States citizen, not United States citizen), place of birth (United States born, foreign born), offense dates, statute code, counts for the ten most serious offenses committed, defendant histories of alcohol abuse, drug abuse, mental illness, physical or sexual abuse as a child, serious head injury, intelligence (IQ), or other claims made in the case. Information is included for up to 13 USAO assessments and 13 AGRC assessments of statutory and non-statutory aggravating factors and mitigating factors. Victim characteristics included living situation and other reported factors, such as being a good citizen, attending school, past abuse by the defendant, gross size difference between the victim and defendant, if the victim was pregnant, if the victim had a physical handicap, mental or emotional problems or developmental disability, and the victim's present or former status (e.g., police informant, prison inmate, law enforment officer). Data are also provided for up to 13 factors each regarding the place and nature of the killing, defendant motive, coperpetrators, weapons, injuries, witnesses, and forensic and other evidence.
New Approach to Evaluating Supplementary Homicide Report (SHR) Data Imputation, 1990-1995
공공데이터포털
The purpose of the project was to learn more about patterns of homicide in the United States by strengthening the ability to make imputations for Supplementary Homicide Report (SHR) data with missing values. Supplementary Homicide Reports (SHR) and local police data from Chicago, Illinois, St. Louis, Missouri, Philadelphia, Pennsylvania, and Phoenix, Arizona, for 1990 to 1995 were merged to create a master file by linking on overlapping information on victim and incident characteristics. Through this process, 96 percent of the cases in the SHR were matched with cases in the police files. The data contain variables for three types of cases: complete in SHR, missing offender and incident information in SHR but known in police report, and missing offender and incident information in both. The merged file allows estimation of similarities and differences between the cases with known offender characteristics in the SHR and those in the other two categories. The accuracy of existing data imputation methods can be assessed by comparing imputed values in an "incomplete" dataset (the SHR), generated by the three imputation strategies discussed in the literature, with the actual values in a known "complete" dataset (combined SHR and police data). Variables from both the Supplemental Homicide Reports and the additional police report offense data include incident date, victim characteristics, offender characteristics, incident details, geographic information, as well as variables regarding the matching procedure.
Multiple Imputation for the Supplementary Homicide Reports: Evaluation in Unique Test Data, 1990-1995, Chicago, Philadelphia, Phoenix and St. Louis
공공데이터포털
This study was an evaluation of multiple imputation strategies to address missing data using the New Approach to Evaluating Supplementary Homicide Report (SHR) Data Imputation, 1990-1995 (ICPSR 20060) dataset.
Using Public Health Databases to Analyze Legal Intervention Shootings, United States, 2006-2017
공공데이터포털
This project used national databases to describe the incidence and distribution of fatal and nonfatal police shootings and to develop an empirically based typology of legal intervention homicides. To accomplish this, the study team evaluated the comprehensiveness of the National Violent Death Reporting System (NVDRS) for fatal police shootings along with various open-source databases. The study team also explained the variation across states in fatal police shootings using a validated national database (Washington Post "Fatal Force Database") and is currently examining the variation in fatal police shooting across urban vs. rural areas.
Felonious Homicides of American Police Officers, 1977-1992
공공데이터포털
The study was a comprehensive analysis of felonious killings of officers. The purposes of the study were (1) to analyze the nature and circumstances of incidents of felonious police killings and (2) to analyze trends in the numbers and rates of killings across different types of agencies and to explain these differences. For Part 1, Incident-Level Data, an incident-level database was created to capture all incidents involving the death of a police officer from 1983 through 1992. Data on officers and incidents were collected from the Law Enforcement Officers Killed and Assaulted (LEOKA) data collection as coded by the Uniform Crime Reporting (UCR) program. In addition to the UCR data, the Police Foundation also coded information from the LEOKA narratives that are not part of the computerized LEOKA database from the FBI. For Part 2, Agency-Level Data, the researchers created an agency-level database to research systematic differences among rates at which law enforcement officers had been feloniously killed from 1977 through 1992. The investigators focused on the 56 largest law enforcement agencies because of the availability of data for explanatory variables. Variables in Part 1 include year of killing, involvement of other officers, if the officer was killed with his/her own weapon, circumstances of the killing, location of fatal wounds, distance between officer and offender, if the victim was wearing body armor, if different officers were killed in the same incident, if the officer was in uniform, actions of the killer and of the officer at entry and final stage, if the killer was visible at first, if the officer thought the killer was a felon suspect, if the officer was shot at entry, and circumstances at anticipation, entry, and final stages. Demographic variables for Part 1 include victim's sex, age, race, type of assignment, rank, years of experience, agency, population group, and if the officer was working a security job. Part 2 contains variables describing the general municipal environment, such as whether the agency is located in the South, level of poverty according to a poverty index, population density, percent of population that was Hispanic or Black, and population aged 15-34 years old. Variables capturing the crime environment include the violent crime rate, property crime rate, and a gun-related crime index. Lastly, variables on the environment of the police agencies include violent and property crime arrests per 1,000 sworn officers, percentage of officers injured in assaults, and number of sworn officers.
Effects of Defense Counsel on Homicide Case Outcomes in Philadelphia, Pennsylvania, 1995-2004 [United States]
공공데이터포털
This study measured the difference that defense counsel made to the outcome of homicide and death penalty cases. One in five indigent murder defendants in Philadelphia were randomly assigned representation by the Defender Association of Philadelphia while the remainder received court-appointed private attorneys. This study's research design utilized this random assignment to measure how defense counsel affected murder case outcomes. The research team collected data on 3,157 defendants charged with murder in Philadelphia Municipal Court between 1995-2004, using records provided by the Philadelphia Courts (First Judicial District of Pennsylvania). Data were also obtained from the Philadelphia Court of Common Pleas, the Pennsylvania Unified Judicial System web portal, the National Corrections Reporting Program, and the 2000 Census. This study contains a total of 47 variables including public defender representation, defendant demographics, ZIP code characteristics, prior criminal history, case characteristics, case outcomes, and case handling procedures.
National Prosecutors Survey Series
공공데이터포털
Investigator(s): Bureau of Justice Statistics The National Survey of Prosecutors is a survey of chief prosecutors in state court systems. A chief prosecutor is an official, usually locally elected and typically with the title of district attorney or county attorney, who is in charge of a prosecutorial district made up of one or more counties, and who conducts or supervises the prosecution of felony cases in a state court system. Prosecutors in courts of limited jurisdiction, such as municipal prosecutors, were not included in the survey. The survey's purpose was to obtain detailed descriptive information on prosecutors' offices, as well as information on their policies and practices. Years Produced: Every 4 to 5 years.
Survey of Prosecutorial Response to Bias-Motivated Crime in the United States, 1994-1995
공공데이터포털
This national survey of prosecutors was undertaken to systematically gather information about the handling of bias or hate crime prosecutions in the United States. The goal was to use this information to identify needs and to enhance the ability of prosecutors to respond effectively to hate crimes by promoting effective practices. The survey aimed to address the following research questions: (1) What was the present level of bias crime prosecution in the United States? (2) What training had been provided to prosecutors to assist them in prosecuting hate- and bias-motivated crimes and what additional training would be beneficial? (3) What types of bias offenses were prosecuted in 1994-1995? (4) How were bias crime cases assigned and to what extent were bias crime cases given priority? and (5) What factors or issues inhibited a prosecutor's ability to prosecute bias crimes? In 1995, a national mail survey was sent to a stratified sample of prosecutor offices in three phases to solicit information about prosecutors' experiences with hate crimes. Questions were asked about size of jurisdiction, number of full-time staff, number of prosecutors and investigators assigned to bias crimes, and number of bias cases prosecuted. Additional questions measured training for bias-motivated crimes, such as whether staff received specialized training, whether there existed a written policy on bias crimes, how well prosecutors knew the bias statute, and whether there was a handbook on bias crime. Information elicited on case processing included the frequency with which certain criminal acts were charged and sentenced as bias crimes, the existence of a special bias unit, case tracking systems, preparation of witnesses, jury selection, and case disposition. Other topics specifically covered bias related to racial or ethnic differences, religious differences, sexual orientation, and violence against women.
경찰청 변사자 통계
공공데이터포털
경찰청에서 제공하는 변사자 발생원인별 자살, 타살, 과실사, 재해사, 기타로 구분.
National Judicial Reporting Program Series
공공데이터포털
Investigator(s): Bureau of Justice Statistics This series tabulates the number of persons convicted of felonies in state courts and describes their sentences. Data were collected from state courts and state prosecutors in 300 counties of the United States. The collection contains socio-demographic information such as age, race, and sex of the felon. Types of offenses committed include homicide, rape, and robbery. Adjudication variables referring to the process between arrest and sentencing are also included. Data can be analyzed at the national level or by the individual counties.Years Produced: Every 2 years