Adjusting the National Crime Victimization Survey's Estimates of Rape and Domestic Violence for Gag Factors, 1986-1990 (ICPSR 6558)
Adult Criminal Careers in New York, 1972-1983 (ICPSR 9353)
Adult Criminal Careers, Michigan: 1974-1977 (ICPSR 8279)
Age-by-Race Specific Crime Rates, 1965-1985: [United States] (ICPSR 9589)
Arrests Without Conviction, 1979-1980: Jacksonville and San Diego (ICPSR 8180)
Assessing the Link Between Foreclosure and Crime Rates: A Multi-level Analysis of Neighborhoods Across 29 Large United States Cities, 2007-2009 (ICPSR 34570)
These data are part of NACJD's Fast Track Release and are distributed as they were received from the data depositor. The files have been zipped by NACJD for release, but not checked or processed except for the removal of direct identifiers. Users should refer to the accompanying readme file for a brief description of the files available with this collection and consult the investigator(s) if further information is needed.
The study integrated neighborhood-level data on robbery and burglary gathered from local police agencies across the United States, foreclosure data from RealtyTrac (a real estate information company), and a wide variety of social, economic, and demographic control variables from multiple sources. Using census tracts to approximate neighborhoods, the study regressed 2009 neighborhood robbery and burglary rates on foreclosure rates measured for 2007-2008 (a period during which foreclosure spiked dramatically in the nation), while accounting for 2007 robbery and burglary rates and other control variables that captured differences in social, economic, and demographic context across American neighborhoods and cities for this period. The analysis was based on more than 7,200 census tracts in over 60 large cities spread across 29 states. Core research questions were addressed with a series of multivariate multilevel and single-level regression models that accounted for the skewed nature of neighborhood crime patterns and the well-documented spatial dependence of crime.
The study contains one data file with 8,198 cases and 99 variables.
Calling the Police: Citizen Reporting of Serious Crime, 1979 (ICPSR 8185)
Calls for Service to Police as a Means of Evaluating Crime Trends in Oklahoma City, 1986-1988 (ICPSR 9669)
Commercial Victimization Surveys, 1972-1975 [United States]: Cities Sample (ICPSR 8002)
Commercial Victimization Surveys, 1973-1977 [United States]: National Sample (ICPSR 8003)
Convenience Store Crime in Georgia, Massachusetts, Maryland, Michigan, and South Carolina, 1991-1995 (ICPSR 2699)
County Characteristics, 2000-2007 [United States] (ICPSR 20660)
Crime, Fear, and Control in Neighborhood Commercial Centers: Minneapolis and St. Paul, 1970-1982 (ICPSR 8167)
Crime in Boomburb Cities: 1970-2004 [United States] (ICPSR 29202)
Criminal Justice Response to Victim Harm in the United States, 1981 (ICPSR 8249)
Criminal Victimization Among Women in Cleveland, Ohio: Impact on Health Status and Medical Service Usage, 1986 (ICPSR 9920)
Criminal Victimization and Perceptions of Community Safety in 12 United States Cities, 1998 (ICPSR 2743)
Deterrent Effects of Arrests and Imprisonment in the United States, 1960-1977 (ICPSR 7973)
Deterrent Effects of Punishment on Crime Rates, 1959-1960 (ICPSR 7716)
Deterrent Effects of the New York Juvenile Offender Law, 1974-1984 (ICPSR 9324)
Disrupting Gun Transfers, Los Angeles, California, 2014-2015 (ICPSR 37163)
The data was used to provide estimates of the effects of a Los Angeles letter program on citywide levels of homicide, robbery, and aggravated assault with a firearm. This study will provide the city of Los Angeles and other jurisdictions in California (and beyond) with information on the impact and cost-effectiveness of an innovative gun letter program. This project involves the following:
- statistical analysis of gun-level data to assess program impact on reporting guns lost or stolen,
- statistical analysis to evaluate the impact of the program on city-level crimes involving a firearm, and
- assessment of program costs.
Effects of Prior Record in Sentencing Research in a Large Northeastern City, 1968-1979: [United States] (ICPSR 8929)
Exploratory Spatial Data Approach to Identify the Context of Unemployment-Crime Linkages in Virginia, 1995-2000 (ICPSR 4546)
Firearm Legislation and Firearm Violence Across Space and Time, United States, 1970-2012 (ICPSR 36688)
These data are part of NACJD's Fast Track Release and are distributed as they were received from the data depositor. The files have been zipped by NACJD for release, but not checked or processed except for the removal of direct identifiers. Users should refer to the accompanying readme file for a brief description of the files available with this collection and consult the investigator(s) if further information is needed.
The study constructed a comprehensive, longitudinal dataset of all counties nested within U.S. States from 1970 to 2012. The study's main purpose was to facilitate research that would further understanding on firearm legislation and its impacts on violence. This comprehensive data collection effort included information on firearm legislation implemented across U.S. States over time in combination with multiple measures of firearm-related violence and injury. Moreover, to better understand the conditions under which firearm legislation is more or less effective, incorporation of county characteristics allowed for examination of whether the effectiveness of state-level firearm legislation depends upon particular characteristics of counties. The researchers conducted a secondary analysis utilizing a variety of archived external government and census sources.
The Study's Dataset Include two Stata Files:
- CJRC_firearms_research.dta (95 Variables, 129,027 Cases)
- state_law_data.dta (19 Variables, 2,168 Cases)
Forensic Evidence and the Police, 1976-1980 (ICPSR 8186)
Impact of Casino Gambling on Crime in the Atlantic City Region, 1970-1984 (ICPSR 9237)
Impact of Forensic Evidence on the Criminal Justice Process in Five Sites in the United States, 2003-2006 (ICPSR 29203)
Impact of Immigration on Ethnic-Specific Violence in Miami, Florida, 1997 (ICPSR 3872)
Impact of Sentencing Guidelines on the Use of Incarceration in Federal Criminal Courts in the United States, 1984-1990 (ICPSR 9845)
Improving the Investigation, Clearance Rates, and Victim Restoration of Robberies: A Randomized Controlled Experiment, Seattle, Washington, Rochester, New York, 2021-2023 (ICPSR 39101)
Clearance rates for most crimes have remained low and stable for decades (Braga et al., 2011), despite advances in police technologies (Koper et al., 2015). Many police agencies have developed triaging practices for criminal investigations using solvability factors to guess which cases are most likely to be solved and to allocate investigative resources to those crimes (Eck, 1983; 1992). This practice partially stems from a persistent belief that resolving crimes and the resulting clearance rates are due to circumstances of the crime and community context, and are beyond the control of police. However, a growing body of research has challenged this belief, demonstrating that enhanced investigative efforts can improve crime clearance rates beyond solvability factors (Braga and Dusseault, 2018; Lum and Wellford, 2023).
In this study, the research team sought to determine if investigative follow-ups could increase clearance rates for robbery and burglary cases (frequently occurring crime types with traditionally low clearance rates) and increase victim satisfaction with police services. Agencies selected for the study were the Seattle Police Department (SPD) in Seattle, Washington, and the Rochester Police Department (RPD) in Rochester, New York. Both agencies triaged a large proportion of robbery cases and would have a large enough sample size to successfully carry out an experiment.
The original study design was a randomized controlled trial. In both sites, robbery cases would be allocated to either the intervention condition--an investigative follow-up conducted by an officer during their daily patrol assignment--or the control condition with no follow-up. Challenges to personnel and agency funding from the COVID-19 pandemic, the murder of George Floyd, and other officer-involved deaths in 2020 led to difficulties implementing the study as initially designed. The experiment was not initiated in Rochester, and initiated but not completed in Seattle. Therefore, the team transitioned to a natural quasi-experiment design in Rochester and added a case analysis of robberies in Seattle.
This collection contains three datasets: victim satisfaction surveys from Seattle (DS1, n=39) and Rochester (DS2, n=37), and supplemental reports on follow-ups made during the Seattle experiment implementation (DS3, n=82).
Improving the Production and Use of Forensic Science, 5 U.S. counties, 2006-2009 (ICPSR 36727)
This study collection sought to thoroughly understand the creation, testing, and use of forensic science in five jurisdictions across the country. A random sample was selected of recent criminal cases in the following jurisdictions and tracked from investigation to adjudication to understand how forensic evidence functions:
- Sacramento County, CA: 990 cases
- Segwick County, KS: 936 cases
- Allegheny County, PA: 978 cases
- Bexar County (San Antonio), TX: 936 cases
- King County, WA: 892 cases
The Principal Investigator sought answers to the following seven primary research questions:
- How often is forensic evidence collected and analyzed and how is it used pre-arrest?
- What are the outcomes of forensic evidence testing?
- What is the effect of forensic evidence on arrest and charging?
- How does forensic evidence affect the plea-bargaining process?
- What effect does forensic evidence have on conviction and sentencing outcomes?
- Does the turnaround time for analysis of forensic evidence have any impact on case disposition?
- Does the institutional configuration of the crime laboratory have any effect on its productivity?
Data for the following types of forensic testing are included in this data collection: hair, fibers, glass, paint, gas chromatography / mass spectrometry (GC/MS), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy / energy dispersive x-ray spectroscopy (SEM/EDX), physical match, drug identification, toxicology, serology, combined DNA index system (CODIS), DNA short tandem repeat (Y-STR), blood pattern, test fire, and comparison scope.
Influence of Sanctions and Opportunities on Rates of Bank Robbery, 1970-1975: [United States] (ICPSR 8260)
Intercity Variation in Youth Homicide, Robbery, and Assault, 1984-2006 [United States] (ICPSR 30981)
International Crime Victimization Survey (ICVS), 1989-2000 (ICPSR 3803)
International Crime Victim Survey (ICVS), 1989-1997 (ICPSR 2973)
International Victimization Survey, 1988 and 1992 (ICPSR 9421)
Local-Area Crime Survey, [United States], 2015, 2016 (ICPSR 38920)
The Bureau of Justice Statistics (BJS) entered into a cooperative agreement with Westat to develop and evaluate a lower-cost, subnational companion survey of victimization as one piece of the subnational estimates program. The Local-Area Crime Survey (LACS) was fielded in 2015 and 2016 and is intended for use by states, municipalities, or other jurisdictions and entities to assess levels and trends in public safety. The LACS is modeled in part after the National Crime Victimization Survey (NCVS), conducted for BJS by the U.S. Census Bureau. One of the two major statistical programs on crime produced by the U.S. Department of Justice, the NCVS is the nation's primary source of information about criminal victimization, whether reported or not reported to police. The core NCVS methodology includes a mix of in-person and telephone interviews with household members age 12 and older selected from an area probability sample to produce reliable national-level estimates. As another part of the subnational estimates program, BJS worked with the Census Bureau to enhance and reallocate the NCVS sample to support subnational estimates for the 22 most populous states and potentially substate areas within those states. For the most part, this direct estimation component of the program will not support estimates at the local level. See the NCVS Subnational Estimates webpage on the BJS website for more information.
The goals of this research were to (1) develop and test a relatively inexpensive survey design (2) that could be administered by local jurisdictions or their vendors (3) to produce cross-jurisdiction estimates and estimates of change over time within jurisdictions that may be compared with similar estimates using NCVS data. In addition to questions about victimization experiences, the LACS included questions about perceptions of community safety and police efficacy. The rationale for including these items was that they were relevant to all households, not just victims. The hope was that these items would increase survey response rates as non-victims would have important questions to answer. The LACS served as a platform for assessing the value of these questions for the planned NCVS instrument redesign. For more information, see the NCVS Instrument Redesign webpage on the BJS website.