Dr. David L Black is an internationally recognized forensic toxicologist and founder of Aegis. Currently, Dr Black serves as a consultant to major organizations for development of substance abuse prevention and testing programs. Dr Black has extensive experience as an expert witness in local, state, national and international court cases involving drug use and testing.

He earned his undergraduate degree from Loyola College in Baltimore, Maryland and doctorate degree in forensic toxicology from the University of Maryland at Baltimore. Dr Black is a Diplomate of the American Board of Forensic Toxicology (D-ABFT) and a Fellow of the American Institute of Chemists (FAIC). Dr Black is currently a Clinical Associate Professor with an appointment in Pathology at Vanderbilt University.