Ryan Fisher, Ph.D. is a Senior Research Associate at the National Policing Institute. He joined the National Policing Institute in August of 2023. Previously, Dr. Fisher held roles at the American Institutes for Research and the City of Philadelphia, providing research and technical assistance on projects related to policing, crime and violence prevention, and criminal justice reform. Dr. Fisher’s background is in quantitative and spatial analysis, and his published research includes work on policing practices, environmental criminology, and quantitative methods. In addition, he has extensive experience in public policy work, including researcher-practitioner partnerships and collaboration with local and federal criminal justice agencies. He earned his Ph.D. in Criminology and Criminal Justice from Temple University, focusing his dissertation work on spatial patterns of co-offending.