Find Experts
Expert Bio

Primary Area of Expertise


Expert Witness Profile

Dr. Sawyer is a toxicologist with a doctorate in toxicology from Indiana University School of Medicine. A fellow of the American Academy of Forensic Sciences, Dr. Sawyer has more than 30 years of extensive experience in public health and forensic toxicology with specialized expertise in criminal and civil causation analyses (defendant and plaintiff). He served for 23 years as an assistant adjunct professor with the Department of Medicine at Upstate Medical University in Syracuse, NY, and has approximately 14 years of experience as a licensed clinical and environmental laboratory director in several states. He has also served for 15 years as a peer-reviewer and member of the editorial advisory board for the journal "The Forensic Examiner." Dr. Sawyer currently serves as the chief toxicologist for TCAS, LLC.

Areas of special expertise include alcohol, drugs-of-abuse, pharmaceuticals, herbal products, dioxins, solvents, heavy metals, crude oil, radionuclides and many other substances. With respect to alcohol, Dr. Sawyer has received extensive training in alcohol toxicology at Indiana University School of Medicine. As part of his training requirements, Dr. Sawyer assisted in training Indiana State Police members in certification for breathalyzer testing and sobriety screening.

Dr. Sawyer routinely provides impartial toxicological evaluations to U.S. and international governmental agencies, corporations and select plaintiffs and defendants. Toxic exposure investigations include analytical protocol, referral of autopsy material for analyses, environmental and occupational health risk assessments, site assessment and causation determination. Final work products include scientific methods and validation, forensic documentation and written reports used in both forensic and non-judicial assessments.

Education & Licenses

Ph.D., D-ABFM, Toxicologist