This report is largely based on a Pew Research Center survey of police officers conducted by the National Police Research Platform (NPRP), which collaborated with Center researchers on the questionnaire and oversaw the technical administration of the survey. The Center retained final editorial control over the questionnaire, the analysis of the survey and the contents of this report.

The NPRP, headquartered at the University of Illinois at Chicago from 2008 to 2016, seeks to advance the science and practice of policing in the United States. It is now based at the Police Foundation in Washington, D.C., with continued support from the National Institute of Justice. It is managed by a team of leading police scholars and practitioners, supported by a respected national advisory board. The NPRP researchers who participated in this project were:

Dennis P. Rosenbaum, University of Illinois at Chicago, NPRP Principal Investigator
Stephen D. Mastrofski, George Mason University, NPRP Co-principal Investigator
Susan M. Hartnett, University of Illinois at Chicago, NPRP Co-principal Investigator
Wesley G. Skogan, Northwestern University, NPRP Co-principal Investigator
Justin Escamilla, University of Illinois at Chicago, Research Coordinator
Georgina Enciso, University of Illinois at Chicago, Research Coordinator                 

This report is a collaborative effort based on the input and analysis of the following individuals at the Pew Research Center. Find related reports online at

Kim Parker, Director of Social Trends Research
Rich Morin, Senior Editor
Renee Stepler, Research Analyst
Juliana Horowitz, Associate Director, Research
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Courtney Kennedy, Director of Survey Research
Andrew Mercer, Senior Research Methodologist
Anna Brown, Research Analyst
Nikki Graf, Research Associate
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