evidence law. Previously, he was a visiting legal writing instructor at Villanova University School of Law; a Litigation Department associate for the firm of Schnader, Harrison, Segal & Lewis; and an Assistant District Attorney in the Philadelphia District Attorney's Office. The focus of his more than 15 years of writing and practice has been on the cultural, political, economic, and practical implications of prosecuting violent crime. He is the author of Constitutional Criminal Procedure (1997) and numerous articles and book chapters on scientific evidence, police investigatory practices, and jury reasoning processes. He is a member of the American Association of Law Schools' Evidence Section Advisory Board and of the American Bar Association (ABA) Criminal Justice Section's (CJS) Committee on Rules of Criminal Procedure and Evidence, and he is co-chair of the ABA CJS Committee on Race and Racism in the Criminal Justice System. He received a J.D. from the University of Pennsylvania Law School.