the center’s Program on Scientific and Technical Evidence. As part of this program, he serves as principal editor of the Center’s Reference Manual on Scientific Evidence. He has published several articles on the use of court-appointed experts and is currently examining changes in summary judgment practice in federal district courts over the past 30 years. Dr. Cecil received his J.D. and a Ph.D. in psychology from Northwestern University. He serves on the editorial boards of social science and legal journals. He has served as a member of several panels of NAS, and currently is serving as a member of the National Academies Committee on Science, Technology, and Law. Other areas of research interest include federal civil and appellate procedure, jury competence in complex civil litigation, claim construction in patent litigation, and judicial governance.

M. Bonner Denton is a Professor of Chemistry and a Professor of Geo-sciences at the University of Arizona. He received his B.S. and B.A. in 1967 from Lamar State College of Technology. In 1972, he received his Ph.D. from the University of Illinois. He is the recipient of the American Chemical Society Division of Analytical Chemistry Award in Spectrochemical Analysis, 2001; the Pittsburgh Spectroscopy Award, 1998; the University of Arizona Excellence in Teaching Award, 1993; and the SAS Lester Strock Award, 1991. Dr. Denton has served as the editor of four texts on scientific optical imaging and has authored more than 190 peer-reviewed manuscripts. He has served as President of the Society of Applied Spectroscopy; Chair of the Analytical Division of the American Chemical Society; a Galileo Fellow, College of Science, University of Arizona, 2004; Fellow, Royal Society of Chemistry, 2004; Fellow, Society for Applied Spectroscopy, 2006; and Fellow, National Association of the Advancement of Science, 2006. His research interests include analytical instrumentation and spectroscopy and mass spectrometry.

Marcella F. Fierro served as Chief Medical Examiner for the Common-wealth of Virginia, and Professor of Pathology and Professor and Chair of the Department of Legal Medicine at Virginia Commonwealth University from 1994 to 2008. Dr. Fierro oversaw the medical examiner investigations of all violent, suspicious, and unnatural deaths in Virginia. She teaches forensic pathology to medical schools, law students, law enforcement agencies, the Commonwealth’s attorneys, and other interested groups. She received a B.A. in biology cum laude from D’Youville College, Buffalo, New York, and earned her M.D. from the State University of New York at Buffalo School of Medicine. She completed residency training in pathology at the Cleveland Clinic and the Medical College of Virginia, Virginia Commonwealth University. She was a fellow in forensic pathology and legal medicine at Virginia Commonwealth University and the Office of the