A former police officer and detective, Dr. Cynthia Lum is Distinguished University Professor of Criminology, Law and Society at George Mason University, and directs their Center for Evidence-Based Crime Policy. She is an appointed member of the National Academies of Sciences Committee on Law and Justice, an appointed trustee to the Council on Criminal Justice, and a board director for the National Policing Institute. We talk about evidence-based policing, implementing innovation, and how to overcome some of the barriers to progress.