Dorothy E. Dean, MD is a Forensic Pathologist at the Hamilton County Coroner's Office in Cincinnati, Ohio and is an adjunct professor at the University of Cincinnati College of Medicine in the Department of Pathology. One of her major interests is the evaluation of drug- and poison-related fatalities. She, along with Dr. Powers, co-authored Forensic Toxicology Mechanisms and Pathology (Taylor and Francis, 2016), as well as several scientific articles on the subject.

Robert H. Powers, PhD is a professor at the University of New Haven Department of Forensic Sciences, where he has taught forensic toxicology at both the undergraduate and graduate level for over 10 years. He is active nationwide as a forensic consultant and expert witness for civil and criminal cases, with a particular focus on questions related to the potential of drug involvement in death cases, and drug and alcohol -related impairment issues. He is the co-author of many scientific articles as well as Forensic Toxicology Mechanisms and Pathology with Dr. Dean.