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Evaluating Gunshot Detection Technology (GDT) to Aid in the Reduction of Firearms Violence, United States, 2006-2016 (ICPSR 37448)

Released/updated on: 2023-05-30

Geographic coverage: Milwaukee, United States, Colorado, Denver, California, Wisconsin

Time period: 2008-01-01--2016-04-30, 2008-01-01--2016-12-31, 2006-01-01--2015-12-31, 2015-01-08--2016-05-28, 2011-02-25--2016-05-31, 2009-06-01--2015-10-31, 2015-01-08--2016-06-15, 2011-02-25--2016-12-31, 2009-06-01--2015-10-31

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.

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Evaluation of the Community Supervision Mapping System for Released Prisoners in Rhode Island, 2008-2010 (ICPSR 32004)

Released/updated on: 2014-09-30

Geographic coverage: Rhode Island, United States

Time period: 2008-01-01--2010-12-31

This study evaluated the Community Supervision Mapping System (CSMS), an online geospatial tool that enables users to map the formerly incarcerated and others on probation, along with related data such as service provider locations and police districts. Probation officers in the state of Rhode Island were surveyed a few weeks before and 18 months after the implementation of CSMS. A total of 56 probation officers participated in the first wave of the study (pre-implementation survey), and 52 probation officers participated in the second wave (post-implementation survey), yielding an overall sample size of 108 probation officers. Dataset 1 contains the data for both waves of the study. The dataset is comprised of 140 variables. Both waves of the study examined the following categories of variables: the probation officer's professional background, contact with clients, amount of time spent on job duties specific to the profession, contact with other agencies, and computer usage. The second wave added 86 variables to explore officers' experiences with CSMS, which features they used, how it impacted their work, and their expected use of CSMS in the future.