Joe Nickell, PhD, is a former investigator with a world-famous detective agency who has been consulted in homicide and questioned-document cases. Among his numerous books are Relics of the Christ and The Science of Miracles.
John F. Fischer
John F Fischer is a forensic analyst in a Florida crime laboratory whose fields of expertise include microchemical and instrumental analyses. He is also president of a corporation specializing in forensic research, especially in the field of laser technology. His articles have appeared in such publications as Identification News and Law Enforcement Technology.