By Ruth Moyer

This evaluation suggests “the current GVI implementation in Philadelphia has been associated with significant reductions in group member involved firearm violence. The continued effectiveness of the implementation will likely depend on a range of factors, including necessary adjustments to evolving group activity and firearm violence.” Between January 2020 and May 2022, at least 1,147 Group Member-Involved shootings have occurred in Philadelphia. Approximately one out of every five of these shootings results in a death (23.1%). The current implementation of Group Violence Intervention (GVI) in Philadelphia has produced significant reductions in Group Member-Involved (GMI) firearm violence at the group-unit level during the study period, January 2020 to May 2022. It has also produced significant reductions in GMI firearm violence at the census tract-level during the study period. Importantly, due to COVID-19-related restrictions on public gatherings, the current GVI implementation in Philadelphia departed from the usual call-in meeting model. Instead, Mobile CallIn Team (MCIT) custom notification visits provided the primary means of GVI implementation. Given the results indicating a reduction in firearm violence, a GVI implementation through MCIT custom notification visits appears to maintain the effectiveness of GVI. Post-Treatment relative to Pre-Treatment, a group-unit, on average, experienced a significant 38.6% reduction in shootings per week. Notably, receiving 2 doses of treatment relative to 0 doses of treatment produced a significant 50.3% reduction in shootings per week for a group-unit. A census tract experienced a non-significant 25.1% reduction (p=0.07) in GMI shootings per week, Post-Treatment relative to Pre-Treatment. Importantly, however, where a census tract received 4 or more doses relative to 0 doses (Pre-Treatment), there was a significant 44.4% reduction (p=0.03) in GMI shootings per week. The effects of GVI on individual outcomes such as victimization and offending merit further research. A longer study period in prospective research will provide an opportunity to more precisely detect the effect of GVI on individual behavior and victimization risk. Enforcement actions were associated with a reduction in GMI shootings. Once it was subject to an enforcement action, a group experienced a significant 42.8% reduction (p=0.04) in shootings. Future research should identify the particular levers in an enforcement action that are most effective. This Evaluation conducted qualitative research to inform the quantitative findings. The qualitative research components were the following: (1) informal telephone conversations with GVI recipients; (2) surveys given to Philadelphia Police Department (PPD) officers involved in MCIT custom notifications; and (3) informal surveys distributed at two Philadelphia Roadmap for Safer Communities community meetings.   

Philadelphia: University of Pennsylvania, 2023. 80p.

By Mark Hoekstra CarlyWill Sloan

This paper examines race and police use of force using data on 1.6 million 911 calls in two cities, neither of which allows for discretion in officer dispatch. Results indicate White officers increase force much more than minority officers when dispatched to more minority neighborhoods. Estimates indicate Black (Hispanic) civilians are 55 (75) percent more likely to experience any force, and five times as likely to experience a police shooting, compared to if White officers scaled up force similarly to minority officers. Additionally, 14 percent of White officers use excess force in Black neighborhoods relative to our statistical benchmark.

AMERICAN ECONOMIC REVIEW VOL. 112, NO. 3, MARCH 2022 (pp. 827-60)

By Julie Grieco and Teresina G. Robbins

Several high-profile officer-involved shootings (OIS) in 2014 and 2015 stimulated a national debate and exposed the absence of reliable national data on police use of deadly force. To begin exploring this issue, the Major Cities Chiefs Association (MCCA) first asked their members to provide the number of OIS for their agencies for the years 2005-2015. While helpful in understanding the trends and frequency of these incidents, this data alone provides no insight into the circumstances of the encounters between officers and members of the public. To help develop a better understanding of these interactions, MCCA and the National Policing Institute (NPI) entered into a partnership in 2015 to collect more detailed OIS data. The partnership had two primary objectives. The first was to provide a basis for a more accurate and reliable estimate of firearm use by police officers in major cities. The second, covered in this report, was to provide better insight into OIS situations and, through the analysis of the data, improve officer safety and accountability. After developing a tool and a process, OIS data collection was launched in late March 2015. The NPI and the MCCA have developed three executive summaries on this project to share the information with practitioners on 1006 cases involving 1605 officers in 47 MCCA US agencies for the years 2015 to 2017. The first focuses on OIS incident characteristics. The second presents the findings of an analysis of officer-involved shooting incidents in the major cities. It looks at factors involved such as location, officer and suspect characteristics,

• More.....

  injuries, agency response to OIS, and issues in OIS data collection. The third is a broader discussion of OIS incidents, how their data are captured within law enforcement, and the gaps in our understanding of these encounters.

Alexandria, VA: Policing Institute, New York: Arnold Ventures, 2019. 65p.