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Forensic Toxicology Expert Witnesses

Forensic toxicology 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 forensic toxicology. The forensic toxicology expert witness listings on this page are typically from fields/areas of expertise such as: Anatomic Pathology, Dram Shop & Alcohol Services, Emergency Medical Toxicology, Emergency Medicine, Forensic Medicine, Forensic Pathology, Forensic Science, Occupational Medicine, Pharmacist, Pharmacology, Pharmacology- Clinical, Products Liability, and Toxicology.

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Kerollos Shaker, MD, FACEP

Expert Toxicologist/ER Doc/Clinical Asst Professor

SHAKER EMERGENCY SPECIALISTS PLLC

Alabama

Emergency Medicine, Emergency Medical Toxicology - Medical Toxicology, Emergency Medicine, Alcohol, Carbon Monoxide, Accidental overdose, Myocardial Infarction, Airway, Blood Clots, Snake Bites, Occupational Exposure, Addiction, Nursing Home, Antivenom, Workplace Exposure, Cannabinoids, Drugs of Abuse, Forensic Toxicology, Urine Drug Screens, Postmortem Death Analysis, Dram Shop

Dr. Kerollos Shaker is a board certified Emergency Medicine Physician and Medical Toxicologist in Houston, Texas. He graduated from University of Alabama School of Medicine. He completed residency in Emergency Medicine and fellowship in Medical Toxicology. Currently practicing as an ER Doctor and Toxicologist Consultant. He is also a Laboratory Director with experience in high-complexity labs. ATLS, ACLS, PALS certified. Medical Licenses in Texas and Florida. Also an Affiliate Clinical Assistant Professor with College of Medicine. Email: kshakertox@gmail.com - Available for reviews in both Emergency Medicine/ER and Toxicology. Toxicology Review: -Forensic toxicology, postmortem interpretation of results, -Exposures including Hydrogen Sulfide, Carbon Monoxide -Acute overdoses in any setting, -interpretation of drug testing (hair, oral, urine, blood, vitreous fluid), -Delta-8-THC, Delta-9-THC, marijuana, cannabinoids, -PeTH testing blood alcohol testing, ethyl glucuronide ...

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Curt E Harper, Ph.D.

Forensic Toxicology Consultant & Expert Witness

Harper Forensic Toxicology Consulting, LLC

Pelham, Alabama

Toxicology, Forensic Science - Dram shop, retrograde extrapolation, workplace drug testing, wrongful death, insurance, child custody, DUI and DUID, Postmortem toxicology, forensic toxicology, toxic tort and exposures, medical malpractice, hair testing, drug facilitated sexual assault, alcohol, drugs, oral fluid

Dr. Curt E. Harper is a nationally recognized Forensic Toxicologist with over 17 years of experience specializing in forensic toxicology, drug and alcohol impairment, DUI/D cases, and toxicological interpretation. Since 2012, he has served as the Chief Toxicologist for the Alabama Department of Forensic Sciences (ADFS), overseeing laboratory operations, forensic method development, quality assurance programs, and expert case reviews. Dr. Harper has testified in over 300 criminal and civil cases in Alabama and surrounding states, providing expert opinions on alcohol and drug impairment, retrograde extrapolation, forensic toxicology in postmortem cases, and other specialized areas. Dr. Harper’s scientific expertise, extensive courtroom experience, and ability to explain complex toxicology concepts make him an asset in both criminal and civil litigation. He holds a Ph.D. in Pharmacology and Toxicology and a Master of Science in Forensic Science (MSFS) from the University of Alabama at...

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Michael J Kosnett, MD, MPH, DFACMT

Medical Toxicology and Occupational/Environmental

California

Toxicology, Occupational Medicine - Lead poisoning, cannabis, drug testing, alcohol, marijuana, environmental toxicology, occupational toxicology, arsenic poisoning, forensic toxicology, DUI, risk assessment, aviation toxicology, medical monitoring, risk communication, heavy metals, environmental health, public health, carbon monoxide, occupational cancer, fire toxicology

2016 Recipient of the American College of Medical Toxicology Matthew J. Ellenhorn Award [career achievement award in recognition of “extraordinary contributions to the field of medical toxicology”] Diplomate, American Boards of Internal Medicine, Preventive Medicine (Occupational Medicine), and Medical Toxicology Distinguished Fellow of the American College of Medical Toxicology (DFACMT) Active Medical Licensure in Colorado and California Professional activities have included: • Past President, American College of Medical Toxicology • Committee on Toxicology of the National Academy of Sciences • NIOSH Board of Scientific Counselors • CDC Advisory Committee on Childhood Lead Poisoning Prevention • EPA Science Advisory Board panels (lead in air, water, dust) • ATSDR expert panels (lead biomonitoring, hair analysis) • WHO consultant and temporary advisor (arsenic in drinking water, chelation of heavy metals) • Consultant to US Air Force Science Advisory Board (F-22) • Consultant to the...

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Michael J Kosnett, MD, MPH, DFACMT

Medical Toxicology and Occupational/Environmental

Denver, Colorado

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Aaron L Hilliard, PhD

Forensic Toxicologist Johns Hopkins Trained

Health Matters EMPT

Jacksonville, Florida

Pharmacology- Clinical, Toxicology - DUI, Medication Adverse Effects, Overdose, Personal Injury, Medical Malpractice, Toxic Exposure, Medication Errors, Adverse Drug Reactions, Lead, Mold, Pesticides, Wrongful Death, Retrograde Extrapolation, Alcohol, Drugs of Abuse, Environmental Exposure, Postmortem Toxicology, Forensic Toxicology, Litigation Support, Public Health

Dr. Aaron Hilliard obtained his Doctor of Philosophy degree in Pharmacology/Toxicology from Meharry Medical College. After completing his Ph.D., he continued his research in Pharmacology and Forensic Toxicology at the Johns Hopkins School of Public Health, Division of Toxicological Sciences. Dr. Hilliard has served at the Florida Department of Health and held faculty appointments at the University of Florida. He is currently a tenured Associate Professor at Florida A&M University in the College of Pharmacy. He has authored several peer-reviewed publications related to pharmacology, toxicology, and the environmental impact of chemicals. Dr. Hilliard also brings 25 years of experience providing deposition and trial testimony in Pharmacology and Forensic Toxicology for both Plaintiff and Defense in Federal, State, Criminal, and Civil cases. Dr. Hilliard is a highly qualified expert in toxicology and pharmacology, offering a deep scientific foundation and over 25 years of applied exper...

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Alberto Augsten, Pharm.D., M.S.,BCPP, DABAT

Board Certified Toxicologist/Psychopharmacologist

Augsten Consulting, LLC

Hollywood, Florida

Toxicology, Pharmacology- Clinical - Toxicology, Psychopharmacology, Pharmacy, Psychiatry, Addiction Medicine, DUI, Drugs of Abuse, Poisoning, Medication Errors, Overdose, Opioid Overdose, Forensic Toxicology, Drugs of Abuse Testing

Dr. Alberto Augsten, founder of Augsten Consulting, is a consultant and expert witness specializing in psychopharmacology and clinical toxicology. Offering professional, impactful, and strategic consulting services, Dr. Augsten caters to legal, healthcare, and clinical practice development. His expertise encompasses many areas, ensuring clients receive top-notch guidance and insights. Dr. Augsten is the only Dual Board Certified Toxicologist and Psychopharmacologist in the Nation, and has been qualified as an expert in Toxicology in both Criminal and Civil cases. Dr. Augsten thoroughly analyzes environmental substances, including metals, pesticides, toxic gases, solvents, particulates, carcinogens, industrial chemicals, allergens, and natural toxins. Our expertise ensures a comprehensive evaluation of potential exposures and their impact on health. Dr. Augsten specializes in providing tailored consulting services to assist in the development and optimization of clinical practic...

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Kerollos Shaker, MD, FACEP

Expert Toxicologist/ER Doc/Clinical Asst Professor

SHAKER EMERGENCY SPECIALISTS PLLC

Florida

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Susan M Skolly-Danziger, PharmD, MS, CPh, DABAT

Psychiatric Affiliates, PA

Maitland, Florida

Toxicology, Pharmacist - DUI Alcohol or Drug impairment, Drugs of Abuse Testing, Effects of Drugs on Behavior, Illicit Drug Synthesis, Drug Interactions, Poisoning, Medication Errors, Overdose, Opioid Overdose, Hospital: Medication Errors, Adverse Effects of Drugs, Forensic Toxicology, CNS Therapeutics, Clinical pharmacology, Antidepressant treatment

· Dr. Skolly-Danziger is a Florida Consultant Pharmacist. A consultant pharmacist is a medication therapy management expert, who advises on the use of medications for patients in a variety of settings such as nursing homes, hospitals and outpatient clinics. · Dr. Skolly-Danziger is an expert in the field of Pharmacy, Pharmacology and Toxicology. She has been qualified by Circuit and Federal Judges in Arkansas, Florida, Illinois, Ohio and Oklahoma to provide opinions to the Court and juries from misdemeanor to death penalty cases in the areas of Pharmacy, Pharmacology, and Toxicology. She has been qualified as an expert in toxicology in both Criminal and Civil matters. · Dr. Skolly-Danziger has been qualified as an expert in Toxicology in both Criminal and Civil cases involving opioid-related deaths. · Dr. Skolly currently provides standard of care reviews concerning matters in both retail and hospital pharmacy practice on behalf of the Florida Department of Health.

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Barry Gustin, MD, MPH

Experienced Toxicology & Emergency Medicine Expert

Miami, Florida

Emergency Medicine, Toxicology - Emergency Medical Toxicology, Water Poisoning, Medical Toxicology, Public Health, Trauma, Forensic Toxicology, Diet and Disease, Urgent Care, Occupational Toxicology, Food Poisoning, Environmental Toxicology, Substance Abuse Toxicology

Dr. Gustin has had extensive education, training, and experience as a medical case reviewer and expert witness. He has personally evaluated and analyzed thousands of civil and criminal medical cases for both plaintiff and defendant, and is highly recommended by defense and plaintiff attorneys in civil and criminal actions. Dr. Gustin graduated from the University of Vermont magna cum laude, obtained a Master's degree in Nutrition, Biochemistry, and Metabolism from Goddard College, went to medical school at George Washington University in Washington DC where he distinguished himself as the President of the American Medical Student Association's section on Nutrition, Health Maintenance, and Disease Prevention. He also won the prestigious Joseph Goldberger Scholarship in Cardiology to the National Institutes of Health. After graduation, Dr. Gustin completed his Internship at the University of California, San Francisco (Alameda County Medical Center), and his residency training in Emerg...

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Matthew Myers, MS, MPA

Toxicology: Alcohol, Drugs, Crashes, Dram Shop etc

7 Arrow Forensics

Peachtree City, Georgia

Toxicology, Dram Shop & Alcohol Services - Drug Impairment, Alcohol Intoxication, Retrograde Extrapolation, Widmark Equation, Alcohol Calculations, Sobriety Testing, DUI Accident, DWI Crash, Drug Recognition Expert, Forensic Toxicology, Marijuana Impairment, Cannabis THC, Drug Facilitated Crime, Server Training, Dram Shop, Serum Alcohol, Hospital BAC, SFST, Human Performance

Matthew Myers, MS, MPA, is a nationally recognized expert witness and consultant in drug- and alcohol-related human performance impairment. With over 20 years of investigative experience and advanced clinical toxicology education, Matt brings a unique interdisciplinary perspective to civil litigation, combining scientific expertise and practical experience. Areas of Expertise Matt’s consulting practice focuses on civil matters, including impaired driving crashes, dram shop liability, alcohol service, workplace impairment, and other related areas. His services include case review, toxicology interpretation, behavioral analysis, alcohol calculations, procedure evaluation, and assessment of evidentiary sufficiency against accepted standards. His background in pharmacology and toxicology, along with practical experience evaluating impaired individuals, allows him to explain both the mechanisms of drug and alcohol effects and describe their real-world impact from personal observations....

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Aaron L Hilliard, PhD

Forensic Toxicologist Johns Hopkins Trained

Health Matters EMPT

Georgia

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Aimee Nefcy, MD

Canton, Michigan

Toxicology - Clinical toxicology, forensic toxicology, medication and drug overdose and adverse reactions and medication interactions, toxidromes, lab interpretation, heavy metal poisoning, occupational exposures, radiation poisoning, envenomations, spider bites, carbon monoxide poisoning, acute lung injury

Board certified in Medical Toxicology in Detroit with years of experience diagnosing and treating poisoned patients in emergency, intensive care, inpatient and outpatient settings. Extensive experience with forensic toxicology, interpretation of laboratory results, and analysis of post-mortem charts with reporting to the National Poison Data System. Experience with inhaled toxins, acute lung injury, drug overdose, withdrawal syndromes of all types, carbon monoxide poisoning, drug interactions, medication adverse reactions, toxidromes, heavy metal poisoning, spider bites, envenomations, and many others. Strong history of education and experience in writing and public speaking.

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Richard A Stripp, Ph.D.

American Scientific Consultants Corp

Huntington, New York

Toxicology, Pharmacology - Forensic toxicology, alcohol, drugs of abuse, dui, dwi, dram shop, prescription pain drugs, cocaine, heroin, pcp, amphetamine, overdose, carbon monoxide, lead, heavy metals, opiates, marijuana, THC

Dr. Richard Stripp is a nationally recognized expert in toxicology providing services in all aspects of a clinical and forensic toxicology. He has served as an expert consultant in 100’s of cases in the field of toxicology and pharmacology for attorneys, investigators, and physicians involved in forensic and clinical toxicological evaluations associated with ethanol, drugs of abuse, prescription medications and chemical exposure. Dr. Stripp provides unbiased expert case reviews involving drug effect on human performance, toxicity of iatrogenic/ therapeutic agents, lead and other toxic metals, carbon monoxide and environmental/occupational hazards. These services include, impartial evaluations involving drug impairment, overdose, toxic chemical exposure, medical issues associated with drug therapy, poisoning, and the role of drugs, alcohol, or chemical exposure in civil and criminal litigation. This covers a full breath of forensic medical-legal cases

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Heath Jolliff, DO

Medical Toxicology and Forensics Expert

Mid-Ohio Toxicology Services, LLC

Columbus, Ohio

Toxicology, Emergency Medical Toxicology - Forensic toxicology, Drug Abuse, Overdose, Impairment, Marijuana, Alcohol, Drug testing, DUI, Risk assessment, Cannabis, Opioids

Board Certified in Emergency Medicine and Medical Toxicology. Fellowship trained at the University of Colorado/Rocky Mountian Poison and Drug Center. Over 3 decades of clinical experience. Expert forensics work for over 2 decades Active Medical License in Colorado and Ohio Fellow, American College of Medical Toxicology Previous, Medical Toxicology Fellowship Program Director

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Priya Banerjee, MD

Anchor Forensic Pathology LLC

Barrington , Rhode Island

Forensic Pathology, Forensic Medicine - Private Autopsy, Second autopsy review, cause and manner of death, wrongful death, Injury/wound interpretation, forensic toxicology, drug/medication overdose, medical malpractice, nursing home death, work place death, homicides, gunshot and stab wounds, in custody/police death, crime scene analysis

I am a American Board of Pathology board certified forensic pathologist with experience in handling a wide variety of case types, involving all manners of death. I have performed over 2700 autopsies including over 150 homicides. I bring solid training from The University of Pennsylvania and The Johns Hopkins Hospital. I am actively practicing in Rhode Island and have worked in Maryland. I have been qualified in multiple states as an expert witness in the fields of forensic pathology, postmortem toxicology interpretation, trauma interpretation, and cause and manner of death determination. I have also published in multiple peer reviewed journals on postmortem diagnoses such as infection, tumor diagnosis and toxicology. I have handled domestic and international cases for major clients including military, wrongful death of Breonna Taylor, NSA, etc. I also perform private autopsies in an effort to aid in family closure and/or litigation needs. This is can be done within a few days of...

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Sol M Bobst, PhD DABT

ToxSci Advisors LLC

Houston, Texas

Toxicology, Products Liability - Expert Witness in Toxicology, Available for Plaintiff or Defense Work. Experience in Civil Cases for Toxic Tort and Exposures, Risk Assessment and Increased Risk for General Causation. Also Experienced in Forensic Toxicology, DWI, DUID, Drug Evidence in Criminal and Family Law Cases. Over 40+ cases

CV, References, and Term Sheet Available Upon Request. Experienced with US OSHA, US EPA TSCA, FIFRA, and US FDA Food, Drug, and Cosmetic Regulations.

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Paul Uribe, MD

Board Certified Forensic Pathologist

DMH Forensic Consulting

Richmond, Texas

Forensic Pathology, Anatomic Pathology - Autopsy, Death investigation, Cause of death, Manner of death, Trauma, Injury, Pain and suffering, Medical examiner, Homicide, Survivability, Time of death, Forensic, Coroner, Toxicology, Overdose, Laboratory Medicine, Drug-related, Forensic Toxicology

- Board certified in Anatomic, Clinical, and Forensic Pathology by the American Board of Pathology - Actively practicing Deputy Chief Medical Examiner - Active medical licensure in 10 states - Retired Lieutenant Colonel, US Army with over 23 years of Active Duty Service - Former Director,Office of the Armed Forces Medical Examiner - Personally performed over 3000 autopsies, including over 400 homicides - Court experience with over 60 trials, hearings, and depositions - Member of the Board of Directors of the National Association of Medical Examiners (NAME) and International Association of Coroners and Medical Examiners - Recipient of the "A" Proficiency Designator, Order of Medical Military Merit (O2M3), FBI Director's Award for Outstanding Criminal Investigation (2022), and National Association of Medical Examiners Outstanding Service Award (2025).

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Kerollos Shaker, MD, FACEP

Expert Toxicologist/ER Doc/Clinical Asst Professor

SHAKER EMERGENCY SPECIALISTS PLLC

Houston, Texas

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Margaret M Gedde, MD, PhD, DABPath

Cannabis Toxicology Expert Witness

Gedde Whole Health LLC

Fredericksburg, Virginia

Toxicology - THC DUI/DWI, Marijuana DUI/DWI, Methamphetamine Testing, Forensic Toxicology, Cannabis, Medical Marijuana, Hemp Testing, Blood Alcohol Testing, CBD Tests, Cannabinoid Pharmacokinetics, Alcohol Hair Testing, THC Blood Testing, THC Drug Testing, Blood Cannabinoids, THC Impairment, Marijuana Impairment

Margaret M. Gedde, MD, PhD, brings authoritative clarity to interpretation of Blood Cannabinoids and other drugs in criminal and civil THC DUI / DWI cases, providing data-driven interpretation of blood levels based on recognized sources in testimony and in written reports. In addition to the MD degree, Dr. Gedde holds a PhD in Chemistry from Stanford University and is Board Certified in Clinical Pathology, the medical specialty that includes toxicology. Litigation Support - Dr. Gedde has 22 years of experience in clinical practice, with 15 of those in cannabis medicine. She has been in active practice for 10 years as an expert witness for cases involving cannabis and other drugs, with testimony 13 times at a trial, hearing, or deposition in the past four years. Dr. Gedde helps defense attorneys use medical pharmacology and toxicology findings to cross-examine witnesses who testify regarding interpretation of THC blood tests. Dr. Gedde is knowledgeable about the environment around ...