Dr. William R. Sawyer is a Professional Toxicologist with a doctorate in toxicology from Indiana University School of Medicine. He has over 33 years of extensive experience in Public Health and Forensic Toxicology with specialized expertise in causation analyses (plaintiff and defendant) including Alcohol toxicology, Drugs-of-Abuse, Pharmaceuticals, Herbal Products, Dioxins, Solvents, Heavy Metals, Crude Oil and other Chemicals. Dr. Sawyer has testified in trial or deposition in over 30 states including NY, MA, CT, PA, RI, NH, DE, NJ, WV, VA, NC, SC, GA, FL, AL, MS, LA, AR, MO, KY, IN, IL, WI, MI, OH, MN, MT, WA, CA, TX, OK.
As a skilled scientist and communicator in the area of toxic tort, Dr. Sawyer provides services to governmental agencies, corporations, select plaintiffs or defendants. Dr. Sawyer currently serves as Chief Toxicologist for TCAS, LLC, and served for 23 years as an Assistant Professor (adjunct) with the Department of Medicine, Upstate Medical University, Syracuse, New York. Dr. Sawyer also has approximately 14 years experience as a licensed clinical and environmental laboratory director in several states.
Lisa Myers interviews Dr. Sawyer on NBC Nightly News
TCAS Services and Expertise:
Mass Toxic Tort
Medical Malpractice - Pharmaceuticals
Forensic Source ID
Qualifications & Experience
Academic Affiliations- Medical School Faculty (adjunct)
Government Experience - Public Health Toxicologist
Ted W. Simon, PhD, DABT, is an award winning Environmental Toxicologist and Scientist. His expertise is in toxicology, risk assessment, mathematical modeling, statistics, neuroscience, and environmental / ecological health issues.
Dr. Simon has over 10 years of experience as a toxicologist employed by the Environmental Protection Agency (EPA). He served as EPA’s senior toxicologist in the waste management division working on risk and soil cleanup.
Teaching Experience - Since 2001, Dr. Simon has served as an Instructor / Adjunct Professor in the Department of Environmental Health Science, College of Public Health, at the University of Georgia.
Public Speaker - Well published, including the author of a textbook on toxicology and environmental risk assessment, Dr. Simon has extensive national and international public speaking experience. Since 1996, he has been delivering seminars and lectures to universities and national institutes on many subjects within his area of expertise. In 2016, he delivered a lectures on “Bayesian Methods for Application of Uncertainty Factors,” to the Society of Toxicology Annual Meeting, New Orleans, LA, and “Quantitative Prediction of Phenotypic Change from High Throughput Assay Results,” to the EPA's Workshop on In Vitro to In Vivo Extrapolation, Research Triangle Park, NC.
Litigation Support - Dr. Simon has over 15 years of experience offering expert witness services to counsel representing both plaintiff and defendant. He has been retained over 20 times since 2000 for cases involving environmental risk, drug and alcohol cases, DUI, accidental poisoning, and intellectual property. Dr. Simon has particular expertise in dioxin-like chemicals and polychlorinated biphenyls (PCBs). His services include consulting, reports, deposition, and trial testimony when necessary.
The willingness to view risk as part of daily life has vanished. A risk-averse mindset among environmental regulators engenders confusion between the ethics of intention and the ethics of consequence, leading to the elevation of the precautionary principle with unintended and often unfortunate outcomes. Environmental risk assessment is conservative, but the actual level of conservatism cannot be determined. High-end exposure assumptions and current toxicity criteria from the USEPA, based on linear extrapolation for carcinogens and default uncertainty factors for systemic toxicants, obscure the degree of conservatism in risk assessments. Ideally, one could choose a percentile of the target population to include within environmental standards, but this choice is complicated by the food, pharmaceutical and advertising industries, whose activities, inadvertent or not, often promote maladaptive and unhealthy lifestyle choices.
The experts at Miller Engineering are Ann Arbor-based professional engineers celebrating 30 years of service to University, Government, Insurance, and Industry through research, publications, presentations, and testimony. Miller Engineering has a staff of engineers and experts in the Mechanical, Chemical, Agriculture, Industrial, and Human Factors fields of engineering with specific knowledge in the following areas:
James M. Miller, PE, PhD – Founder Dr. Miller is an Emeritus Professor at the University of Michigan College of Engineering and a registered professional engineer and consultant with over 30 years of experience as an expert witness. He has served as a consultant to industry and government and is highly qualified to give engineering testimony.
Dr. Miller specializes in warnings, labeling and instruction manuals, consumer product design, machine guarding, process safety, fire science, vehicle visibility, tractor egress/ingress, pedestrian and worker slip and fall prevention, recreational vehicles (ATVs, boats, and personal watercraft), compliance with occupational safety and consumer safety standards (OSHA, MSDS, CPSC, ANSI, ASTM, UL, etc.).
Mark R. Lehto, PhD – Co-Founder Dr. Lehto is a Professor of Engineering at Purdue University. He completed his Ph.D. in engineering at the University of Michigan in 1985, where he specialized inHuman Factors Engineering, in particular Warnings and Labeling. He has taught courses at Purdue in human and safety factors areas, as well as decision making and artificial intelligence. He has authored numerous professionally-reviewed articles, and he has authored / coauthored internationally-recognized textbooks in the areas of human factors and ergonomics.
Dr. Lehto specializes in knowledge engineering, warnings and instructions, structuring expert systems, accident modeling, accident statistical analysis, consumer product safety, boating safety, in-field national surveys of product usage and product information effectiveness.
David R. Clark, PE, PhD – Co-Founder Dr. Clark is an Emeritus Engineering Professor at Kettering University. He was an engineering Ph.D. graduate from the University of Michigan, where he specialized in human factors engineering and system safety analyses. In particular, his earlier degrees in mechanical and electrical areas have given him a special expertise in electrical fire- and explosion-related accidents.
Dr. Clark is also published on the topics of warnings and labeling. With considerable in-plant experience at General Motors, he is uniquely qualified to provide student theses and design projects while teaching at Kettering that deal with many types of mechanical and optimization projects. Finally, he has extensive experience working for loss control companies, performing over 150 fire origin and cause investigations in the past few years.
Introduction to Human Factors and Ergonomics for Engineers, Second Edition presents and integrates important methods and tools used in the fields of Industrial Engineering, Human Factors and Ergonomics to design and improve jobs, tasks and products. It presents these topics with a practical, applied orientation suitable for engineering undergraduate students.
Emphasizing customer oriented design and operation, Introduction to Human Factors and Ergonomics for Engineers explores the behavioral, physical, and mathematical foundations of the discipline and how to apply them to improve the human, societal, and economic well being of systems and organizations.
Ronald E. Gots, MD, PhD, DABT, is Board Certified in Toxicology and a Diplomate of the American Board of Toxicology. He has over 30 years of experience as CEO of a successful, highly-regarded biomedical consulting firm dealing with Toxicology, Pharmacology, and Epidemiology.
Dr. Gots has assisted hundreds of clients in analysis, strategy, and testimony in chemical and mold injury claims, regulatory matters, mass tort claims, environmental and workplace exposure issues, and risk communication.
Dr. Gots has shared his expertise with workers and community groups in dozens of toxic exposure matters across the country. He has been consulted for indoor environmental and air quality assessments for numerous office buildings, schools, and manufacturing facilities. He has lectured at numerous national meetings of claims executives, attorneys, policy makers, and physicians in the fields of medicine and science, toxicology, regulation, and claims resolution. He has testified in congressional subcommittee hearings concerning victim compensation legislation.
Dr. Gots has been honored for outstanding achievement from the AOA Medical Honor Society, Sigma Xi Research Honor Society, and the Society of Toxicology Membership. He is the author of six books, chapters in six books, and more than 70 articles on biochemistry, toxicology, mold and mold toxins in insurance and legal literature.
Litigation Support - Dr. Gots has provided expert witness services nationwide. He provides scientific / medical support in individual tort and mass tort claims, involving a range of biological and chemical agents, as well as pharmaceuticals. With over 100 jury trials, he and his team at the International Center for Toxicology and Medicine offer services including:
Chemical sensitivity (or "multiple chemical sensitivity") describes people with numerous troubling symptoms attributed to environmental factors, from simple housepaint to complex building structures and materials in offices and schools. The authors explore the speculations about environmental exposure in the light of scientific knowledge of human physiology, allergy and immunology, pathology, toxicology, and clinical medicine.
Joel Coats, PhD, is Distinguished Professor of Entomology and Toxicology in the Department of Entomology at Iowa State University. Specializing in Insecticide Toxicology and Environmental Toxicology, he has been on the faculty at Iowa State University since 1978 and served as Department Chairman for seven years.
Dr. Coats’ research program includes two main areas: (1) insect toxicology and (2) environmental toxicology and environmental chemistry of Agrochemicals. His research in the insect toxicology area is focused primarily on natural products as insecticides and insect repellents, including investigations of their spectrum of activity, mechanisms of action, metabolism, synthesis of biorational derivatives and analogs, quantitative structure-activity relationships.
Dr. Coats is familiar with all types of pesticides and insect repellents, including synthetic and botanical insecticides, acaricides, fumigants, and repellents; toxicity, mechanisms of action, environmental and comparative toxicology, ecological risk assessment, persistence of pesticides, movement in the environment, and residue analysis.
Litigation Support - Dr. Coats provides expert witness services to counsel representing both Plaintiff and Defense. He has been deposed and testified on numerous occasions. Dr. Coats offers opinions regarding pesticide cases of many types, including:
Non-target / Off-target Effects
Efficacy of Products
Dr. Coats has received the International Award for Research in Agrochemicals from the American Chemical Society Agrochemical Division, and he is a Fellow of the American Association for the Advancement of Science, and a Fellow of the Entomological Society of America. In October he received the Alumni Achievement Award from the University of Illinois College of Liberal Arts and Sciences.
Resistance to conventional pesticides has been growing rapidly among all pests. Furthermore, there is increased public concern about the safety of conventional pesticides, and increased governmental restrictions have resulted in the need to identify new compounds that are safe and effective in controlling pests that are of concern to agriculture as well as to public and animal health. Biopesticides may aid in the control of such pests with fewer deleterious effects to the environment, people and animals.
This volume and the contributed chapters therein are a result of the Natural Products for Pest Management symposium held at the 244th ACS National Meeting in Philadelphia, PA August 19-23, 2012 to honor the late Horace (Hank) Cutler and his contributions in the field of natural products chemistry. The symposium introduced recent discoveries and applications of natural products from insect, terrestrial plant, microbial, and synthetic sources for the management of insects, weeds, plant pathogenic microbes, and nematodes.
The first compilation of research on microbial degradation of contaminants in the rhizosphere. Discusses the interactions between microorganisms, plants, and chemicals in the rhizosphere. Examines the degradation of industrial chemicals, including polycyclic aromatic hydrocarbons, pentachlorophenol, and trichloroethylene, as well as the degradation of pesticides in the rhizosphere.
This new volume offers comprehensive information on microbial adaptation for pesticide degradation. Among the many topics covered in its 20 chapters are a general description of enhanced biodegradation as it occurs in an agricultural context; the microbial aspects of enhanced biodegradation, including the genetics, biochemistry, and ecology of pesticide-degrading microorganisms; and the potential impact of enhanced degradation on pesticide fate in aquatic systems and groundwater.
Toxicology Medical Environmental Sciences Expert Witness Olen Brown
Dr. Olen R. Brown, PhD is a board certified Diplomate in Toxicology and member of the standards of knowledge committee. He has the PhD in Microbiology With over 35 years of experience in Life Sciences and more than 150 publications. Dr. Brown specializes in complex, multidisciplinary cases, and he focuses on Human Medicine using the disciplines of bacteriology, virology, immunology, epidemiology, biochemistry, physiology, analytical chemistry, toxicology, and environmental sciences.
Dr. Brown has provided litigation support services for 180+ cases in 25 states and 1 in Canada. Dr. Brown has served in Plaintiff/Defense, and Criminal/Civil cases. He has testified in 20 trials and 31 depositions. Dr. Brown's expertise include: cause-and-effect determination after medical record review; risk assessment and causation determination from toxic exposure; evaluation of the therapeutic and harmful effects of ethical drugs, antibiotics, alcohol, and drugs of abuse; the toxicity of solvents, pesticides, heavy metals, ozone, carbon monoxide, particulates, and most organic chemicals for most organ systems including the lung (Asthma, COPD, RADS) and the brain (Parkinson's), Dr. Brown has evaluated human medical and veterinary medical devices and pharmaceuticals for safety.
"Miracles" reveals truth from Scripture, science and life. Everything that is or was or is to come is part of God's miracle. Science says that nothing is miraculous- Time and Chance created the universe with no meaning or purpose. God's universe has great meaning extending from the stars to atoms and to you. What we believe about miracles can be a source of great joy or missed joy in our lives. Dr. Brown, a Christian and author of over 100 scientific papers, has coined a new word, synscicretism, to call attention to the doctrine that today elevates science above religion. Science works best for the great "how" questions, but poorly for the great "why" of all things.
This authoritative guide is designed to achieve a synthesis of understanding and effort between case science and case law. It examines all stages of attorney/expert interaction from the initial interview to post-trial evaluation.
Roger M. Katz, MD, is Board certified in Allergy and Immunology and Pediatrics. Dr. Katz has been in the private practice of Allergy & Immunology since 1973. He has been honored as one of the "Best Doctors of America" and elected as one of "Southern California Super Doctors" by his peers.
Dr. Katz is currently a Clinical Professor of Pediatrics at the David Geffen School of Medicine at UCLA. He is the author of over 100 articles, monographs, and chapters on medicine, mostly related to Allergy, Sinus and Asthma Disorders.
Litigation Support - Dr. Katz has approximately 20 years experience in defense and plaintiff expert witness evaluations. His services include Medical Legal Reviews, Depositions, and Court Appearances involving:
Allergy and Asthma Medical Care
Exposures to the Environment - i.e. Sick Building Syndromes
Exposures to Cleaning Agents
Exposures to Insecticides
Fire Related Exposures and Effects on Asthma and Allergy