Expert Toxicologist: Toxicology Consultants and Assessment Specialists

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		Case Studies in Toxicology: Fatal Accident Caused by Long-Term Drug Use?
		This toxicological case study illustrates the methods and means by which presumed causation can be refuted through interpretation of objective scientific evidence. It summarizes the events following the death of an elderly man involved in a motor vehicle accident and demonstrates how pharmacological factors and behavior on the part of the defendant... (more)

		Case Studies in Toxicology: Acute Marijuana Intoxication
		Contributes to Fatal Motorcycle Accident This case study illustrates how circumstantial evidence can be misinterpreted and how drug-impaired judgment and behavior can be regarded as evidential in a toxicological causation assessment. Accident Summary A motorcyclist was fatally injured when he collided with a city bus in a business district. a,b A motorcyclist... (more)

		Professional Experience and Toxicological Specializations
		TCAS has assessed hundreds of different types of toxic substances and exposure effects. [a] TCAS provides professional, comprehensive forensic and environmental exposure analysis, risk assessments and causation determinations. With more than 30 years of hands-on experience, our cases cover a vast range of toxic exposure-related issues combining toxicological... (more)

		Home: Dr. William R. Sawyer, Toxicologist
		Ph.D., Dr. William R. Sawyer is an expert forensic toxicologist For more than 30 years expert toxicologist Dr. William R. Sawyer has been providing forensic toxicology consulting services and expert testimony. Dr. Sawyer has extensive experience... (more)

		Site Map
		Toxicology Consultants and Assessment Specialists, LLC TCAS has devoted its website to the role of the expert toxicologist and the science of toxicology. The following pages present both original and edited public-domain information compiled as a useful educational resource. This site map is a content reference intended to assist with rapid location... (more)

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Home | Experience | Toxic Substances | Case Studies | CV | News | About | Site Map | Contact
Toxic Exposures | Environmental Testing | Risk Assessment | Forensic Toxicology | Causation Evaluation
Dioxin | LNAPL | Hazardous Substances | Heavy Metals | Alcohol Toxicology | Drugs of Abuse
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Pharmaceutical Toxicology | Consumer Products | Human Health Risk Assessments

This is an informational and instructional website devoted to toxicology. It presents both original and edited public-domain content compiled as a useful educational resource. References and footnotes have been included wherever possible and image sources have been cited where appropriate. Although most pages can be printed or downloaded as PDF files (and we encourage you to make constructive use of our information), this website is copyrighted and material may only be reproduced and/or distributed with prior permission from TCAS, LLC.