Jeffrey Fagan is the Isidor and Seville Sulzbacher Professor of Law at Columbia Law School and Professor of Epidemiology at the Mailman School of Public Health at Columbia University. He also a Senior Research Scholar at Yale Law School. His scholarship focuses on fairness and accuracy in the administration of criminal justice and public policy. His research examines race and criminal law procedure, policing and police reform, the legitimacy of the criminal law, capital punishment, firearm violence and regulation, drug policy, and juvenile crime and punishment. He served on the Committee on Law and Justice of the National Academy of Science from 2000-2006. He was a member of the 2004 National Research Council panel that examined policing in the U.S. He was an expert consultant to the U.S. Department of Justice in its investigation of the Ferguson (Missouri) Police Department, the lead expert witness for plaintiffs in the civil rights trial on the New York City Stop and Frisk policy, and an expert witness before the Constitutional Court of Indonesia on capital punishment. He was a consultant and expert witness on capital punishment to the UN Office of the High Commissioner for Human Rights from 2010-2016. He is a Fellow of the American Society of Criminology.