Retrograde Extrapolation Expert Witnesses
Retrograde extrapolation expert witnesses and consultants listed here may be able to form expert opinions, draft expert witness reports, provide expert witness testimony at deposition and/or trial as or serve as consulting (non-testifying) experts on retrograde extrapolation. The retrograde extrapolation expert witness listings on this page are typically from fields/areas of expertise such as: Forensic Science, Laboratories & Testing, and Toxicology.
Bethany Pridgen, MFS
The DEVAUS Group, LLC
Wilmington, North Carolina
Forensic Science, Toxicology
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Controlled substances, DWI, DUI, retrograde extrapolation, driving while impaired, alcohol, drunk driving, cannabis, THC, marijuana, CBD, hemp, quality assurance, ISO 17025, laboratory management, laboratory accreditation, dram shop, back extrapolation, SFST, DRE
Bethany has worked in the forensic science industry since 2005. Early in her career, she had the opportunity to open a new regional forensic science laboratory in southeastern NC. She began an 11 year journey and gained a career’s worth of experience as a laboratory director, quality assurance manager, laboratory scientist, grant writer and manager. She is a trained lead and technical assessor for ISO 17025:2017. She is extremely passionate about truth and justice and has learned that the legal system is not always fair. She has a strong desire to see people held accountable to high standards for their work when it affects the lives and freedom of others. She maintains high integrity in her work and interactions.
She became very interested in the growing cannabis industry while working in the forensics world. She believes the cannabis testing industry has a lot to learn from the forensic science industry about how to self-regulate in a world where you are not regulated. She believe...
Samuel L Kleinman, PhD F-ABFT TC-NRCC
Cincinnati, Ohio
Forensic Science, Laboratories & Testing
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impaired driving, sexual assault, drugs, alcohol, prescription medicine, overdose, DUI, DWI, OWI, accident, crash, toxicology, forensics, dram shop, testing, insurance, injury, workplace drug testing, retrograde extrapolation
Dr Samuel Kleinman is a double board certified forensic toxicologist; he is a Fellow of the American Board of Forensic Toxicology and a Toxicological Chemist certified by the National Registry of Certified Chemists. Dr Kleinman served as both the Deputy Bureau Chief and the Bureau Chief for the central forensic toxicology lab for the state of New Mexico. In this role he participated in more than 40 trials including state district court as well as federal court in New Mexico. He is an expert in laboratory accreditation and piloted the transition of the New Mexico lab towards ISO 17025 compliance.
Dr Kleinman has expertise in pharmacology, pharmacokinetics, impaired driving, sexual assault and blood alcohol interpretation. He offers consultation and education on interpreting laboratory results, chain of custody, workplace drug testing; and if appropriate, participates in depositions and trials. Dr Kleinman is based in Cincinnati, Ohio but consults nationwide.
