Evaluating Gunshot Detection Technology (GDT) to Aid in the Reduction of Firearms Violence, United States, 2006-2016 / Nancy G. La Vigne, Daniel S. Lawrence.

Data file
Ann Arbor, Mich. : Inter-university Consortium for Political and Social Research [distributor], 2023.
  • 1 online resource
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Use of these data is restricted to Princeton University students, faculty, and staff for non-commercial statistical analysis and research purposes only.
Summary note
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.Cf: http://doi.org/10.3886/ICPSR37448.v1
Type of data
Geographic coverage
  • California
  • Colorado
  • Denver
  • Milwaukee
  • United States
  • Wisconsin
Methodology note
Crime, calls for service, and gunshot detection technology alerts from Denver, Milwaukee, and Richmond, CA from 2006-2016.
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