Dr. Cassandra Crifasi is an injury epidemiologist. Her work focuses on policies and practices that improve safety and prevent injury, with a focus on firearms.Crifasi is an Associate Professor at Johns Hopkins University, and the Deputy Director of its Center for Gun Policy and Research. Her research interests include violence prevention; firearm policies and gun violence; underground gun markets; attitudes and behaviors of gun owners including safe storage and public opinion on gun policy; and the evaluation of policies that impact public safety and first responders.Crifasi received her B.S. from Central Washington University, her M.P.H. from the Drexel University School of Public Health, and her Ph.D. from the Johns Hopkins Bloomberg School of Public Health.