Age Cohort Arrest Rates, 1970-1980 (ICPSR 8261)
Analysis of Current Cold-Case Investigation Practices and Factors Associated with Successful Outcomes, 2008-2009 (ICPSR 33761)
These data are part of NACJD's Fast Track Release and are distributed as they there received from the data depositor. The files have been zipped by NACJD for release, but not checked or processed except of the removal of direct identifiers. Users should refer to the accompany readme file for a brief description of the files available with this collections and consult the investigator(s) if further information is needed.
To assess the current practices in cold-case investigations, this study utilized a national online survey of law enforcement agencies (Cold Case Survey Data, n = 1,051) to document the range of ways in which cold-case work is conducted and assess how this organization affects cold-case clearance rates. In November 2008, the chiefs of police in the sample were sent a letter explaining the purpose of the survey and inviting them to participate. Potential respondents were directed to the web-based survey instrument through a provided web address. The results from the national survey were used to select sites for an analysis of case files. Researchers chose three jurisdictions that conducted a large number of cold-case homicide investigations: the District of Columbia, Baltimore, Maryland, and Dallas, Texas (Cold Case Homicide Data, n = 429). To these three sites, researchers added Denver, Colorado (Cold Case Sexual Assault Data, n = 105) because it had received a Department of Justice grant to conduct testing of DNA material in sexual assault cold cases. At all four sites, cold cases were examined for seven categories of data including victim's characteristics, crime context, motivation, human capital, physical evidence, basis for cold-case investigations and cold-case actions.
Arrestee Drug Abuse Monitoring (ADAM) Program in the United States, 2001 (ICPSR 3688)
Arrestee Drug Abuse Monitoring (ADAM) Program in the United States, 2002 (ICPSR 3815)
Arrestee Drug Abuse Monitoring (ADAM) Program in the United States, 2003 (ICPSR 4020)
Arrestee Drug Abuse Monitoring Program II in the United States, 2007 (ICPSR 25821)
Arrestee Drug Abuse Monitoring Program II in the United States, 2008 (ICPSR 27221)
Arrestee Drug Abuse Monitoring Program II in the United States, 2009 (ICPSR 30061)
Arrestee Drug Abuse Monitoring Program II in the United States, 2010 (ICPSR 32321)
Benefits and Limitations of Civil Protection Orders for Victims of Domestic Violence in Wilmington, Delaware, Denver, Colorado, and the District of Columbia, 1994-1995 (ICPSR 2557)
Changing Attitudes and Motivation in Parolees (CHAMPS) Pilot Study in Dallas, Denver, and Des Moines, 2015-2016 (ICPSR 37091)
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 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.
This study examined the implementation of a pilot parole-based intervention, known as the Next Generation of Parole Supervision (NG). Drs. Caleb Lloyd and Ralph Serin developed the NG model with funding from the National Institute of Justice (NIJ), and the National Institute of Corrections developed the NG curriculum for parole officers to implement. The Bureau of Justice Assistance funded the implementation of NG in three study sites: Dallas, Texas; Denver, Colorado; and Des Moines, Iowa.
This mixed-methods study focused on understanding how NG was implemented as it was piloted in the three sites, and assessed NG-trained parole officers' fidelity to the NG model. In order to better understand NG's implementation and the business as usual practices it was intended to replace, the study also included a second group of parole officers who were not trained in NG. The groups were not randomly assigned. Data collected for this study included interview data, parole officer questionnaires related to concepts of the NG curriculum, coaching logs providing measures of whether officers received coaching and its frequency, video recordings of parole supervision meetings, and parole caseload data.
Demographic variables included as part of this collection are parole officers' age and sex, and site location. The data collection includes 3 SAS data files:
- Parole officer-level data (archive_raf170831_po): Includes 31 cases and 26 variables.
- Video-level data (archive_raf170831_video): Includes 241 cases and 15 variables.
- Questionnaire-level data (archive_raf180719_tests): Includes 50 cases and 8 variables.
Commercial Victimization Surveys, 1972-1975 [United States]: Cities Sample (ICPSR 8002)
Commercial Victimization Surveys, 1973-1977 [United States]: National Sample (ICPSR 8003)
Crime in Boomburb Cities: 1970-2004 [United States] (ICPSR 29202)
Criminal Behavior of Gangs in Aurora and Denver, Colorado, and Broward County, Florida: 1993-1994 (ICPSR 2626)
Denver Youth Survey Waves 1-5, (1988-1992) [Denver, Colorado] (ICPSR 36473)
The Denver Youth Survey (DYS) is part of the larger "Program of Research on the Causes and Correlates of Delinquency" initiated by the Office of Juvenile Justice and Delinquency Prevention in 1986. The DYS is a longitudinal study of problem and successful behavior over the life course that focuses on delinquency, drug use, victimization, and mental health. The DYS is based on a probability sample of households in "high-risk" neighborhoods of Denver, Colorado. These neighborhoods were selected on the basis of their social ecology in terms of population and housing characteristics. Only socially disorganized neighborhoods with high official crime rates (top one-third) were included. The survey respondents include 1,528 children and youth who were 7, 9, 11, 13, or 15 years old in 1987, and one of their parents, who lived in one of the more than 20,000 randomly selected households.
The survey respondents include 807 boys and 721 girls and include White (10 percent), Latino (45 percent), and African American (33 percent) youth, as well as 12 percent from other racial/ethnic backgrounds. The child and youth respondents, along with one caretaker, were interviewed annually from 1988 until 1992, and annually from 1995 until 1999. The age range covered by the study is from age 7 through age 26.
The dataset contains 1,528 cases and 22,081 variables.
Denver Youth Survey Waves 6-11 (1993-2003) [Denver, Colorado] (ICPSR 36474)
The Denver Youth Survey (DYS) is part of the larger "Program of Research on the Causes and Correlates of Delinquency" initiated by the Office of Juvenile Justice and Delinquency Prevention in 1986. It is a longitudinal study of problem and successful behavior over the life course that focuses on delinquency, drug use, victimization, and mental health. DYS variables also address family demographics, neighborhood characteristics, parenting, and involvement in social roles.
The DYS is based on a probability sample of households in "high-risk" neighborhoods of Denver, Colorado. These neighborhoods were selected on the basis of their social ecology in terms of population and housing characteristics. Only socially disorganized neighborhoods with high (top one-third) official crime rates were included. The survey respondents include 1,528 children and youth who were 7, 9, 11, 13, or 15 years old in 1987, and one of their parents, who lived in one of the more than 20,000 randomly selected households.
The survey respondents include 807 boys and 721 girls and include White (10%), Latino (45%), and African American (33%) youth, as well as 12% from other racial/ethnic backgrounds. The child and youth respondents, along with one caretaker, were interviewed annually from 1988 until 1992 (waves 1-5), annually from 1995 until 1999 (waves 6-10), and in 2003 (wave 11). The study covers an age range of 7 through 26.
Do Department of Justice Intervention and Citizen Oversight Improve Police Accountability?, United States, 1995-2019 (ICPSR 38413)
Drugs and Police Response: Survey of Public Housing Residents in Denver, Colorado, 1989-1990 (ICPSR 6482)
The Effectiveness of Coordinated Outreach in Intimate Partner Violence Cases in Denver, Colorado 2007 to 2009 (ICPSR 30961)
In collaboration with community- and system-based partners, the current study used an experimental design to test the impact of phone outreach from community-based agencies to women exposed to Intimate Partner Violence (IPV) compared to phone referrals provided by system-based unit (i.e., the Victim Assistance Unit of the DPD or the City Attorney's Office) in a racially and ethnically diverse sample of women whose cases have come to the attention of the criminal justice system. The phone outreach was informed by an interdisciplinary team involving both system- and community-based team members. Participants, who were randomly selected to receive outreach or treatment-as-usual, were interviewed at three time points: after an incident of IPV was reported to the police (T1), 6 months after T1, and 12 months after T1. The study addressed three primary roles. First, investigators evaluated the effectiveness of a coordinated, community-based outreach program in improving criminal justice and victim safety and empowerment outcomes for IPV victims using a longitudinal, randomized control design. Second, victim and case characteristics that moderated outcomes were identified. Third, the influence of spatial characteristics on criminal justice outcomes was evaluated.
Effectiveness of Police Response: Denver, 1982 (ICPSR 8217)
Estimating the Unlawful Commercial Sex Economy in the United States [Eight Cities]; 2003-2007 (ICPSR 35159)
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.
This study measures the size and structure of the underground commercial sex economy in eight major US cities: San Diego, Seattle, Dallas, Denver, Washington, DC, Kansas City, Atlanta, and Miami. The goals of this study were to derive a more rigorous estimate of the underground commercial sex economy (UCSE) in eight major US cities and to provide an understanding of the structure of this underground economy.
Researchers relied on a multi-method approach using both qualitative and quantitative data to estimate the size of UCSE including:
- Collecting official data on crime related to the underground weapons and drugs economies
- Conducting semi-structured interviews with convicted traffickers, pimps, child pornographers, and sex workers at the federal, state, and local levels
- Conducting semi-structured interviews with local and federal police investigators and prosecutors to inform our analysis of the interrelationship across different types of underground commercial sex activity.
Evaluating Gunshot Detection Technology (GDT) to Aid in the Reduction of Firearms Violence, United States, 2006-2016 (ICPSR 37448)
In 2015, the National Institute of Justice funded the Urban Institute's Evaluation of Gunshot Detection Technology to Aid in the Reduction of Firearms Violence. This project was designed to investigate the degree to which gunshot detection technology (GDT) aids in the response, investigation, and prevention of firearms violence and related crimes. The goal of this study was to conduct a rigorous process and impact evaluation of GDT to inform policing researchers and practitioners about the impact GDT may have. To achieve this goal, the research team implemented a mixed-methods research design with police departments in Denver, Colorado; Milwaukee, Wisconsin; and Richmond, California.
Quantitative data collection included administrative data on calls for service (CFS), crime, and GDT alerts, as well as comprehensive case file reviews of 174 crimes involving a firearm. Quantitative analyses examined the impact of GDT by (1) comparing counts of gunshot notifications for GDT alerts to shooting-related CFS, (2) comparing response times of GDT alerts to shooting-related CFS, (3) examining the impact GDT has had on CFS and crimes, and (4) conducting a cost-benefit analysis of the GDT. Qualitative data collection included 46 interviews with criminal justice stakeholders to learn implementation processes and challenges associated with its GDT, and 6 focus groups with 49 community members to learn how residents feel about policing efforts to reduce firearm violence and its use of GDT.
Three types of files were uploaded for each site. They include quantitative data on crimes and CFS (DS1-DS3), gunshot notifications (DS4-DS6), and response times (DS7-DS9). The qualitative data are not currently available as part of this collection.
Evaluation of Boot Camps for Juvenile Offenders in Cleveland, Denver, and Mobile, 1992-1993 (ICPSR 6922)
Evaluation of the Office for Victims of Crime Wraparound Victim Legal Assistance Network Demonstration Project, 5 U.S. states, 2013-2018 (ICPSR 38187)
The Office for Victims of Crime (OVC) created a new demonstration grant program, the OVC Wraparound Victim Legal Assistance Network Demonstration Project, to address the wide range of legal needs victims of crime have in relation to the victimization they experienced. The original four-year demonstration, which was increased to six years, included two phases: (1) a 15-month phase for planning, designing a new service delivery model in collaboration with local partners, and conducting a needs assessment, and (2) a second phase for grantees to implement the model as designed. The program originally funded six sites to plan and implement a new model of legal assistance for victims:
- Alaska Immigrant Justice Center (entire state of Alaska)
- Council on Crime and Justice (entire state of Minnesota)
- Legal Aid Foundation of Los Angeles (Los Angeles County, California)
- Lone Star Legal Aid (72 counties in East Texas)
- Metropolitan Family Services' Legal Aid Society (Cook County, Illinois)
- Rocky Mountain Victim Law Center (City of Denver, Colorado)
The new wraparound service delivery models were expected to facilitate the implementation of wraparound pro bono legal assistance networks to provide legal services to victims. Because victims often receive legal services from a variety of uncoordinated organizations (e.g., victim legal clinics for help with enforcing rights, and legal aid offices or law school clinics for help with other specific civil legal needs), integrated networks may be better able to provide a wide array of legal services from a single, coordinated system. The demonstration grant requirements included: creating and actively engaging a steering committee, working cooperatively with technical assistance provider(s) as needed, and employing a local research partner to help perform the needs assessment and work closely with the evaluation team.
Expanding Use of the Social Reactions Questionnaire among Diverse Women, Denver, Colorado, 2013-2016 (ICPSR 36776)
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 Social Reactions Questionnaire (SRQ) is a widely used instrument designed to measure perceptions of social reactions. Studies using the SRQ have generally asked women to report on social reactions from "other persons told about the assault," without specifying which persons. The purpose of this study was to test a modified version of the SRQ that asked women to report separately on social reactions from criminal justice personnel, community-based providers, and informal supports. The researchers sought to examine changes in social reactions longitudinally as well as the impact of social reactions on criminal justice engagement and post-traumatic distress among diverse women following a recent sexual assault. The study included testing hypotheses about the inter-relationships among social reactions, victim well-being (e.g., psychological distress), and criminal justice variables (e.g., victim engagement with prosecution). Addressing the dearth of longitudinal research on social reactions, this study examined causal links among variables. In particular, researchers tested hypotheses about changes in social reactions over time in relation to criminal justice cases and victims' post-traumatic reactions.
The data included as part of this collection includes one SPSS data file (2_1-Data_Quantiative-Variables-Updated-20180611.sav) with 3,310 variables for 228 cases. Demographic variables included: respondent's age, race, ethnicity, country of origin, sexual orientation, marital status, education level, employment status, income source, economic level, religion, household characteristics, and group identity. The data also contain transcripts of qualitative interviews and one SPSS qualitative coding dataset (file7-2_4_Data_Open_ended_Codes_from_Transcripts.sav) with 19 variables and 225 cases, which are not included in this fast track release.
The Impact of a Forensic Collaborative for Older Adults on Criminal Justice and Victim Outcomes: A Randomized-Control, Longitudinal Design, Denver, Colorado, 2014-2018 (ICPSR 37167)
Initially funded in 2013 by the National Institute of Justice, the primary purpose of this project was to conduct a randomized-control test of the impact of a victim-focused, forensic collaborative relative to usual care (UC) on older adult victims' health, mental health, and criminal justice outcomes. During the course of the project, researchers responded to enrollment and consent challenges by implementing Arm 2 that focused on collecting caseworker and victim advocate perceptions of cases as well as administrative data from Adult Protective Services (APS).
This collection contains 6 datasets:
- Arm 1 (DS1) contains survey results from victim-focused interviews of 40 older adults who were reported to be victims of abuse, neglect, and/or financial exploitation over 4 time points. Variables describe victim and case characteristics, service use/needs, risk factors for abuse, consequences of abuse and exploitation, and criminal justice process and outcomes.
- Arm 2 (DS2) includes a survey of APS caseworkers reporting on a case of older adult abuse, such as client (older adult victim) and perpetrator demographics, mistreatment details (verbal abuse, physical abuse, sexual abuse, neglect, financial exploitation, and/or housing exploitation), and service use.
- Collateral assessments (DS3) surveyed a trusted individual related to the older adult respondent in Arm 1. This included data on the perceptions of the older adult's functioning and use of services; and the quality of decision-making procedures, desired treatment, and outcomes in the criminal justice system. Of the 40 Arm 1 participants interviewed, 33 gave collateral contact information. Of those 33, 16 could not be reached, one failed the consent quiz, and two declined to participate. Of the 14 who participated in an initial interview, only three participated at the follow-up nine months later.
- Revictimization and Prosecutorial Outcome Data (DS5) includes information on new incidents reported to law enforcement over the nine months following the original incident report and prosecution outcomes, gathered from publicly-accessible police reports and court information for Arm 1 and Arm 2 cases.
- APS administrative data (DS6), such as the demographics of the older adult victim and the primary perpetrator, assessment scores for risk and safety, the alleged mistreatment type, whether mistreatment was substantiated, and APS case status. The data included overall risk/safety scores and summary scores for the domains of physical functioning, environmental context, financial resources, mental health, cognition, medical issues, and mistreatment.
Arm 1 demographic variables includes age, gender, education, employment status, marital status, household size, ethnic minority, and income source. Arm 2 surveys reported ethnicity, gender, age, education, marital status, and employment status; APS data reported age and gender.
Impact of Legal Advocacy on Intimate Partner Homicide in the United States, 1976-1997 (ICPSR 25621)
Leaving Gangs and Desisting From Crime Using a Multidisciplinary Team Approach: A Randomized Control Trial Evaluation of the Gang Reduction Initiative of Denver (GRID), Colorado, 2014-2022 (ICPSR 38824)
This dataset is from an evaluation of an intervention program designed to facilitate disengagement from gangs and desistance from crime. Led by the Gang Reduction Initiative of Denver (GRID), a multidisciplinary team and street outreach workers carried out the randomized controlled trial between 2019 and 2022. One hundred forty-three people referred to GRID were assigned at random to receive individualized, coordinated case management, developed by the multidisciplinary team and facilitated by street outreach workers. Intake data was gathered for each referred individual by the referring agent (i.e. their probation officer) and sent to the study personnel. A baseline survey was attempted for each individual shortly after referral; a follow-up survey was attempted roughly 10 months after referral. Judicial data for each referred individual was gathered from official sources from the 5 years prior to referral and for an 18-month period after referral.
Linking Theory to Practice: Examining Geospatial Predictive Policing, Denver, Colorado, 2013-2015 (ICPSR 37299)
This research sought to examine and evaluate geospatial predictive policing models across the United States. The purpose of this applied research is three-fold: (1) to link theory and appropriate data/measures to the practice of predictive policing; (2) to determine the accuracy of various predictive policing algorithms to include traditional hotspot analyses, regression-based analyses, and data-mining algorithms; and (3) to determine how algorithms perform in a predictive policing process.
Specifically, the research project sought to answer questions such as:
- What are the underlying criminological theories that guide the development of the algorithms and subsequent strategies?
- What data are needed in what capacity and when?
- What types of software and hardware are useful and necessary?
- How does predictive policing "work" in the field? What is the practical utility of it?
- How do we measure the impacts of predictive policing?
The project's primary phases included: (1) employing report card strategies to analyze, review and evaluate available data sources, software and analytic methods; (2) reviewing the literature on predictive tools and predictive strategies; and (3) evaluating how police agencies and researchers tested predictive algorithms and predictive policing processes.
Monitoring Drug Epidemics and the Markets That Sustain Them, Arrestee Drug Abuse Monitoring (ADAM) and ADAM II Data, 2000-2003 and 2007-2010 (ICPSR 33201)
Multi-Site Evaluation of Batterer Intervention in Pennsylvania, Texas, and Colorado, 1995-1999 (ICPSR 4696)
National Crime Surveys: Cities, 1972-1975 (ICPSR 7658)
National Evaluation of the Safe Start Promising Approaches Initiative, 2011-2016 (ICPSR 36610)
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 Safe Start Promising Approaches for Children Exposed to Violence Initiative funded 10 sites to implement and evaluate programs to improve outcomes for children exposed to violence. RAND conducted the national evaluation of these programs, in collaboration with the sites and a national evaluation team, to focus on child-level outcomes. The dataset includes data gathered at the individual family-level at baseline, 6-, 12-months. All families were engaged in experimental or quasi-experimental studies comparing the Safe Start intervention to enhanced services-as-usual, alternative services, a wait-list control group, or a comparable comparison group of families that did not receive Safe Start services. Data sources for the outcome evaluation were primary caregiver interviews, child interviews (for ages 8 and over), and family/child-level service utilization data provided by the Safe Start program staff.
Official Crime Rates of Participants in Trials of the Nurse-Family Partnership, Denver, Elmira, New York, and Memphis, 1977-2005 (ICPSR 36580)
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.
This study examined maternal and youth self-reports of arrests and convictions with official records of crime among participants in three randomized controlled trials of the Nurse-Family Partnership (NFP) in Denver, Colorado, Elmira, New York, and Memphis, Tennessee.
Official records were obtained from third-party sources as well as directly from New York State Division of Criminal Justice Services.
The collection contains 10 SAS data files:
- dmom_all.sas7bdat (n=735; 3 variables)
- dmom_control.sas7bdat (n=247; 26 variables)
- echild_all.sas7bdat (n=374; 4 variables)
- echild_control.sas7bdat (n=173; 22 variables)
- emom_all.sas7bdat (n=399; 4 variables)
- emom_control.sas7bdat (n=184; 17 variables)
- mchild_all.sas7bdat (n=708; 5 variables)
- mchild_control.sas7bdat (n=482; 46 variables)
- mmom_all.sas7bdat (n=742; 5 variables)
- mmom_control.sas7bdat (n=514; 25 variables)
Demographic variables include race, ethnicity, highest grade completed, household income, marital status, housing density, maternal age, maternal education, husband/boyfriend education, and head of household employment status.
Police Documentation of Drunk Driving Arrests, 1984-1987: Los Angeles, Denver, and Boston (ICPSR 9400)
Preventing Revictimization in Teen Dating Relationships, 2010-2013, Denver, Colorado (ICPSR 34599)
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.
This study addressed the urgent need to target interventions to high risk groups, such as teen girls who have come to the attention of the child welfare system; rigorously test interventions grounded in empirical research on revictimization; and examine processes implied by revictimization theories. In particular, adolescent girls recruited from the child welfare system were randomized to one of two revictimization prevention conditions: social learning/feminist and risk detection/executive function.
The study contains one data file with 180 cases and 545 variables.
Process Evaluation of the Comprehensive Communities Program in Selected Cities in the United States, 1994-1996 (ICPSR 3492)
Reducing Youth Access to Firearms Through the Healthcare Setting, Denver, Colorado, 2018-2019 (ICPSR 37282)
The Role and Impact of Forensic Evidence on the Criminal Justice System, 2004-2008 [United States] (ICPSR 33462)
These data are part of NACJD's Fast Track Release and are distributed as they there received from the data depositor. The files have been zipped by NACJD for release, but not checked or processed except of the removal of direct identifiers. Users should refer to the accompany readme file for a brief description of the files available with this collections and consult the investigator(s) if further information is needed.
This collection includes data gathered through three separate study designs. The first study called for tracking cases and forensic evidence through local criminal justice processes for five offenses: homicide, sexual assault, aggravated assault, robbery and burglary. Two sites, Denver, Colorado, and San Diego, California, participated in the study. Demographic data were collected on victims (Victim Data n = 7,583) and defendants (Defendant Data n = 2,318). Data on forensic evidence collected at crime scenes included DNA material (DNA Evidence Data n = 1,894), firearms evidence (Ballistics Evidence Data n = 488), latent prints (Latent Print Evidence Data n = 766), trace evidence (Other Impressions Evidence Data n = 49), and drug evidence (Drug Evidence Data n = 43). Comparisons were then made between open and closed cases from the participating sites. Two smaller studies were conducted as part of this grant. The second study was an analysis of an experiment in the Miami-Date, Florida Police Department (Miami-Data County Data n = 1,421) to determine whether clearance rates for no-suspect property crimes could be improved through faster processing of DNA evidence. The third study was a survey of 75 police departments across the nation (Crime Labs Survey Data) to obtain information on the organizational placement, staffing and responsibilities of crime lab units.