Christopher S. Koper
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View article: The evidence-based policing matrix at 14 years
The evidence-based policing matrix at 14 years Open
Objective To update the 2011 results of the Evidence-Based Policing Matrix, a tool for analyzing, visualizing, and translating research on police crime prevention strategies. Methods We added 177 experimental and quasi-experimental studies…
View article: Measuring the Cost-Effectiveness of New Technologies in Policing: The Case of Automatic License Plate Readers (ALPR)
Measuring the Cost-Effectiveness of New Technologies in Policing: The Case of Automatic License Plate Readers (ALPR) Open
Research Question Can research discover the true cost-effectiveness of new technologies in policing, such as automatic license plate readers (ALPR)? Data We review the findings of many impact tests of introducing ALPR readers in predominan…
View article: Validating open-source data on fatal police shootings against self-reports from a national sample of police agencies
Validating open-source data on fatal police shootings against self-reports from a national sample of police agencies Open
Open-source data on fatal police shootings are largely accurate but should be used cautiously, particularly in agency-level analyses. Coordinated efforts by police agencies, open-source compilers, and other researchers could potentially im…
View article: Less-Lethal Weapons and Civilian Injury in Police Use of Force Encounters: A Multi-agency Analysis
Less-Lethal Weapons and Civilian Injury in Police Use of Force Encounters: A Multi-agency Analysis Open
Police use-of-force is a growing public health concern, with recent estimates suggesting that over 70,000 people are injured by police each year. To reduce the risk of injury to civilians, most police agencies authorize the use of various …
View article: Do Community Views of Local Police Agencies Change During “Crises of Legitimacy”? Results of a Multi-wave Random Sample Community Survey in a Large Suburban Jurisdiction
Do Community Views of Local Police Agencies Change During “Crises of Legitimacy”? Results of a Multi-wave Random Sample Community Survey in a Large Suburban Jurisdiction Open
George Floyd’s murder by a Minneapolis Police Department officer on May 25, 2020, was arguably one of the most impactful events in modern policing in the United States. However, several controversial and highly publicized use-of-force even…
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Criminology & Public PolicyEarly View EDITORIAL INTRODUCTION Cynthia Lum, Cynthia Lum Editor-in-ChiefSearch for more papers by this authorChristopher S. Koper, Christopher S. Koper Editor-in-ChiefSearch for more papers by this authorJin R.…
View article: Constrained Gatekeepers of the Criminal Justice Footprint: A Systematic Social Observation Study of 9-1-1 Calltakers and Dispatchers
Constrained Gatekeepers of the Criminal Justice Footprint: A Systematic Social Observation Study of 9-1-1 Calltakers and Dispatchers Open
This study examines the gatekeeping role that public safety communication specialists (911 calltakers and dispatchers) play in the criminal justice footprint using systematic observations of one of the largest public communication centers …
View article: Body‐worn cameras’ effects on police officers and citizen behavior: A systematic review
Body‐worn cameras’ effects on police officers and citizen behavior: A systematic review Open
Law enforcement agencies have rapidly adopted BWCs in the last decade with the hope that they might improve police conduct, accountability, and transparency, especially regarding use of force. Overall, there remains substantial uncertainty…
View article: Examining the Empirical Realities of Proactive Policing Through Systematic Observations and Computer-Aided Dispatch Data
Examining the Empirical Realities of Proactive Policing Through Systematic Observations and Computer-Aided Dispatch Data Open
The 2017 National Academies of Sciences (NAS) Committee and Report on Proactive Policing highlighted what we know about the effects of proactive policing practices on crime prevention and police–community relations. However, the evaluation…
View article: PROTOCOL: Body‐worn cameras’ effects on police officers and citizen behavior: A systematic review
PROTOCOL: Body‐worn cameras’ effects on police officers and citizen behavior: A systematic review Open
Body-worn cameras (BWCs) are one of the most rapidly diffusing technologies in policing today, costing agencies and their municipalities millions of dollars. This adoption has been propelled by highly publicized events involving police use…