Dr. Marc A LeBeau

Dr. Marc A LeBeau, Board-Certified Toxicologist is a forensic toxicology expert specializing in drug-facilitated sexual assault and seized drugs analysis. With a career spanning forensic science, criminalistics, and analytical testing, he brings a comprehensive understanding of toxicological principles to his litigation work. His work centers on investigating drug-related incidents, assessing toxicological evidence, and evaluating whether substances contributed to alleged criminal activities.

Dr. LeBeau has been retained in numerous expert witness and consulting engagements across the United States, involving cases of drug abuse, human trafficking, and DUI testing. His Doctor of Philosophy in Toxicology from the University of Maryland - Baltimore, along with his Board Certified Fellow status with the American Board of Forensic Toxicology, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving forensic toxicology.