Dr. Roberto Santos

Assistant Professor of Criminal Justice

Center for Evidence-Based Crime Policy (CEBCP) Executive Director David Weisburd (L) and Director Cynthia Lum (R) congratulate Hall of Fame inductee Alex Murray at the 2014 CEBCP-IDB Annual Symposium at the Arlington campus. Photo by Alexis Glenn/Creative Services/George Mason University


Office: CHBS Building, Room 5305
Phone: 540-831-5157
E-Mail: rsantos4@radford.edu


  • Ph.D. Nova Southeastern University
  • M.S. Florida Atlantic University
  • B.S. Barry University

Dr. Santos joined the faculty in 2016.


Dr. Santos is a retired police commander from a large police agency in Florida where after 22 years worked in, supervised, and commanded every division within the agency. As such, his interests lie in policing. He assists police agencies and conducts evidence-based and practice-based research to “translate” research to practice and vice versa. Dr. Santos focuses on areas of crime reduction approaches and strategies, crime and place, environmental criminology, police use-of-force, police training, criminal investigations, organizational change and leadership, police and community partnerships, crime analysis, and experimental research methodology.   

Recent Professional Activities

Dr. Santos co-created a crime reduction approach, called Stratified Policing, that provides the means for a police organization to systematize and sustain evidence-based practices taking “what works” and “makes it work” within the police organization. He is active in assisting police agencies around the U.S. and internationally in organizational change, evaluation, and sustainability processes for institutionalizing crime reduction strategies, crime analysis, and accountability. In addition, he has conducted a quasi-experiment and random controlled trial testing police response in, what he has coined as, “micro-time hot spots.” This work has resulted in recent grant funding, several peer-reviewed journal articles, and a police guidebook.  Dr. Santos was recently inducted into George Mason University’s Evidence-Based Policing Hall of Fame for leading rigorous research and the implementation of evidence-based practices into day-to-day police operations. Dr. Santos is currently the lead researcher in a COPS Office funded Collaborative Reform Initiative assisting a California police department to evaluate and improve its use of force practices, training, and community engagement and recently presented to the United States Senate Judiciary Committee in Washington, D.C., for Vera Institute of Justice on data-driven, effective public safety systems and solutions. Additional information about Dr. Santos’ research, publications, and other professional activities is available on his curriculum vita.