He is a co-founder and board member of the American Society of Evidence-Based Policing and was selected as a LEADS Scholar at the National Institute of Justice, where he advanced the use of research in the development of policing tactics and strategies.
Captain Greer is a certified instructor with the New Jersey Police Training Commission and teaches both recruit and in-service classes. He is a faculty instructor with the Virginia Center for Policing Innovation and has travelled extensively teaching police commanders evidence-based approaches to reducing homicide and gun violence in some of the most challenged U.S. cities.
He received a B.A. in Justice Studies from the College of Saint Elizabeth in Morristown, N.J., a Master of Studies (MSt) in Applied Criminology and Police Management at the University of Cambridge in the United Kingdom, and an Executive Master of Public Administrator program at the Robert F. Wagner Graduate School of Public Service at New York University.