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Forensic Toxicology Consultation and Expert Witness Services

Understanding toxicology test results can feel like navigating a maze. We independently review drug and alcohol evidence in criminal and civil matters, helping you understand the laboratory findings, the limitations of testing, and the significance of the results for your case.

Marc A. LeBeau, Ph.D., F-ABFT

alcohol

Alcohol and Drug Facilitated Sexual Assault

A perpetrator uses the incapacitating effects of drugs and/or alcohol to commit a sexual assault
hair testing

Hair Testing
for Drugs

Drugs and poisons remain in hair for a longer period of time compared to more traditional samples like blood or urine
Postmortem toxicology

Postmortem Toxicology

Toxicological tests of samples collected during an autopsy of a deceased individual must be interpreted with extra caution
Workplace Accidents

Accidents | Personal Injury | Insurance Claims

Expert consultation can help determine if that Saturday night party could have impacted a Monday morning work accident
Forensic Standards

Standards of Practice
in Forensic Toxicology

Ensure that you know what the current minimum expectations are for conducting forensic toxicological analyses
Snapshot

Who is Marc LeBeau?

Dr. Marc LeBeau retired in 2024 after 30 years of service with the FBI Laboratory. A renowned, board-certified toxicology expert, he provides consultation and expert witness services in criminal and civil matters.

His areas of specialization include drug- and alcohol-related offenses, toxic exposures, postmortem toxicology, laboratory accreditation, and professional standards. He also advises forensic toxicologists and laboratories on achieving operational excellence.

Marc LeBeau portrait in a suit on transparent background.
Marc LeBeau portrait in grey suit smiling to the camera while sitting on the floor in front of the door.
A Step Ahead

What Sets Dr. LeBeau Apart as a Forensic Toxicologist

Over 35 years of experience analyzing biological fluids and tissue samples collected from the human body for alcohol, drugs, poisons, chemicals, and other substances, and interpreting forensic toxicology test results.

  • Certified as a Fellow of the American Board of Forensic Toxicologists
  • Qualified as an expert witness in federal and state courts throughout North America
  • Engaging speaker who makes technical subjects easy to understand
  • Advocate for standards of practice that advance forensic toxicology
  • Held leadership roles in numerous national and international professional organizations

Forensic Toxicology Services Offered

Over 35 years of experience as a forensic toxicologist
Dr. LeBeau offers expert services that encompass the review of case materials, medical records, and laboratory reports. This comprehensive analysis aids in understanding the presence or absence of drugs and alcohol related to your case, as well as the robustness or constraints of the conducted toxicological tests.
The legal system and professional bodies require expert witnesses to maintain impartiality and objectivity. Moreover, Dr. LeBeau's expert testimony is characterized by his professionalism, courtesy, approachability, and clarity. Notably, he possesses an exceptional talent for demystifying complex technical subjects, making them accessible to lay audiences.
Forensic science, like all scientific fields, is in a state of continual evolution and enhancement. The standards of practice in forensic toxicology are significantly contributing to these advancements. However, they also pose challenges for numerous laboratories that are dealing with staffing and funding shortages. Globally, forensic toxicologists depend on Dr. LeBeau's training to enhance their grasp of the prevailing standards in forensic toxicology and to elevate the testing services of their laboratories.
Need Help?
Seeking an expert toxicologist for legal counsel or personal consultation?
Schedule a complimentary 15-minute consultation to discuss your situation, receive guidance on your subsequent actions, or to obtain further information about LeBeau Forensic Toxicology's consultation and expert witness offerings.
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Need Training?
Is your laboratory seeking assistance in complying with toxicology standards?
Reach out for a complimentary 15-minute conversation regarding his laboratory enhancement services, which encompass personalized training or direct onsite support to advance your forensic toxicology testing capabilities.
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Contact LeBeau forensic toxicology consulting

Understand your toxicology findings

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    About Us

    With over 30 years of experience, Dr. LeBeau specializes in a wide range of areas, including drug-facilitated crimes, poisoning cases, standards of practice, and postmortem investigations.

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