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Our People

Staff

Karen L. Amendola PhD, Chief Behavioral Scientist

Jim Bueermann MA, President

Mary DeStefano MUP, Research Associate, Office of the President

Edwin E. Hamilton MA, Professional Services Director

Adam Kaufman, Research Assistant

Tari Lewis CPA, Chief Financial Officer

Blake Norton MEd, Vice President

Mora Fiedler, Senior Policy Analyst

Mary Sigler, Research Assistant

Jim Specht, Assistant to the President for Communications & Policy

Travis Taniguchi PhD, Senior Research Associate

Amber Scherer MA, Research Associate

Matt Kong, Research Assistant

Maria D. Valdovinos, Research & Administrative Coordinator

Daniel J. Woods PhD, Senior Research Associate

Science Advisor

David Klinger, PhD, Senior Research Fellow

Garth den Heyer PhD, Senior Research Fellow

Emily G. Owens PhD, Senior Research Fellow

Laura Wyckoff PhD, Senior Research Fellow

Clifford Karchmer MPA, Senior Research Fellow

Shefali Tripathi PhD, Senior Research Fellow

David J. Thomas, PhD, LMHC, Senior Research Fellow

Julie Wartell MPA, Research Fellow

Melissa Reuland, MA, Research Fellow

Research Advisory Committee

David Weisburd, PhD, Chair, Chief Science Advisor

Anthony Braga, PhD, Gottfredson Professor, Rutgers University

Robin Engel, PhD, Associate Professor & Director of the Policing Institute (UCPI), University of Cincinnati

Chris Koper, PhD, Associate Professor, Criminology, Law and Society, George Mason University

Jerry H. Ratcliffe, PhD, Professor, Temple University

Executive Fellows

Chief Rick Braziel (Ret.)

Special Agent Chris Butler (Ret.), USSS

Chief Tony Farrar

Chief Ronnell Higgins

Director Thomas Hoffman (Ret.)

Sheriff Rod Hoops (Ret.)

Chief Daniel Isom II, PhD (Ret.)

Chief Bryan Roberts

Deputy Director Ellen Scrivner, PhD (Ret.)

Chief Scott R. Seaman

Chief Scott Silverii, PhD

Chief J. Scott Thomson

Policing Fellows

Lt. Stuart Greer

Sgt. Renée J. Mitchell

Corporal Frank P. Tona

Detective John R. Elliott

Detective Joshua Young

International Fellows

Ahmad Ishaque Jehangir

Chyngyz Kambarov

Tao (Tom) Xu