Cannabis Expert Witnesses
Cannabis 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 cannabis. The cannabis expert witness listings on this page are typically from fields/areas of expertise such as: Accounting, Addiction Medicine, Anesthesiology, Business Damages, Cannabis, Correctional Healthcare, Emergency Medical Toxicology, Family Medicine, Forensic Science, Fraud, Geriatrics, Hospice and Palliative Care, Hospitalist, HVAC, and Laboratories & Testing.
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Joseph A LaRovere, C.E.M.
HVAC, Plumbing, Engineering Expert - 35 Years
LaRovere Consulting, LLC
Cave Creek, Arizona
HVAC, Plumbing
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HVAC, Plumbing, Mechanical, Chiller, Boiler, Air Handler, Heat Pump, flood, damage, leak, air conditioner, water heater, piping, electrical, injury, engineer, cannabis, furnace, carbon monoxide, explosion
35+ years of experience as a contractor, owner/operator, technician, and consultant to the construction industry with specialties in HVAC, Mechanical, Electrical, Plumbing, Energy Management and Control Systems. Licensed PE, Project Manager, Design Professional, Construction Manager on staff.
Specialties
HVAC Systems, air conditioning, heat pumps, chiller plants, heating hot water, boilers, air handlers, water source heat pumps, cooling towers, dedicated outside air, ventilation, and exhaust systems, Energy management and control system, sequence of operation, energy management and building efficiency, Domestic hot water systems, electric and gas boilers and water heaters, mixing valves and hot water recirculation systems, System failures, equipment failures, maintenance issues, preventative maintenance, water treatment, forensic investigation, and remediation, Project Management, Program Management, Project Accounting, and Scheduling consulting and analysis
Contractor Evaluation, ...
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Peter John Ingersoll, CCIM
Cannabis Business & Securities Litigation Expert
Safe Harbour Equity, Inc.
Oceanside, California
Securities & Investments, Cannabis
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Cannabis, investment analysis, receiverships, economic damages, FINRA regulations, litigation support, securities fraud, breach of contract, breach of fiduciary duty, investor lawsuits, unregistered securities, shareholder disputes, lost profits, forensic accounting, business valuation, financial reports, due diligence
Profile Preview:
Cannabis business and securities disputes demand expert insight—Peter John Ingersoll, CCIM, delivers. With 40+ years guiding investor disputes, fraud claims, and unregistered securities cases, he helps attorneys untangle complex business, financial, and operational challenges. Experienced in receiverships, recapitalizations, and courtroom testimony, Peter turns complicated cannabis disputes into clear, actionable strategies.
Full Description:
Peter John Ingersoll, CCIM, is a cannabis business and securities litigation expert witness with over 40 years of experience advising on investor disputes, fraud claims, and unregistered securities. He provides guidance in complex business disputes involving founders, partners, and creditors, offering clear and credible analysis for courts and counsel. Peter’s expertise spans recapitalization, receiverships, and corporate governance, ensuring attorneys can navigate the unique legal, operational, and financial challenges of the...
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Michael J Kosnett, MD, MPH, DFACMT
Medical Toxicology and Occupational/Environmental
California
Toxicology, Occupational Medicine
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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
Toxicology, Occupational Medicine
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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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Ted Menadier, MBA
The Business and Cultivation of Marijuana and Hemp
Approach One LLC
Denver, Colorado
Cannabis, Law Enf & Criminal Justice
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Business of Marijuana, Marijuana Cultivation, Hemp Cultivation, Cannabis Propagation, Cannabis Nursery, Marijuana Expert Witness, Marijuana Crop Valuation, Marijuana economic Damages, hemp, CBD, Cannabis, marijuana, marijuana Market Analysis, Hemp Expert Witness, Hemp, Medical Marijuana
I am an expert in the business and cultivation of marijuana and hemp.
Over the last four years, I have been retained and provided expert services in over 30 cases and insurance claims. I have experience providing opinions in both State and Federal courts and testifying at depositions and trials.
My mix of industry experience and business education (MBA) makes me uniquely qualified to address many issues within the Marijuana and Hemp industries. My business education allows me to analyze markets and a business’s strengths and weaknesses and assess economic impacts in a manner supported by relevant industry, market data, and other relevant documentation.
In addition to continuing expert witness case work, I maintain relationships throughout the cannabis industry and credentials to work within it so that I can stay up to date as the industry evolves.
My experience in indoor and outdoor cannabis cultivation and business practices gives me first-hand knowledge of industry pract...
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Shawn F Wurtsmith, MBA, PSP
Premises Liability and Security Negligence
ICIP LLC
Elizabeth, Colorado
Premises Liability, Security
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Inadequate/Negligent Security, Premises Liability, Crime Foreseeability, Risk Management, Risk Assessment, Night Club, Vulnerability Assessment, Security Program, Incident Response, Health Care, Security Training, Security Assessments, Security Management, Video Surveillance, Security Audit, Retail, Hospitality, Cannabis
Shawn F Wurtsmith, MBA, PSP (Available Nationwide)
Primary Areas of Expertise: Premises Liability & Security Negligence
Credentials: Physical Security Professional (PSP), ASIS International (2011) | C-TPAT Certification, US Dept. of Transportation (2009) | CFATS Certified, US Dept. of Homeland Security (2008) | Private Pilot's License (1990)
Professional Affiliations: ASIS | IAPSC | SIA | IAHSS | SEAK Expert Witness Directory | Expert Institute (IQ)
Education: MBA – Business Administration, University of Phoenix | BA – Biology, University of Northern Colorado
About
Shawn Wurtsmith is an independent security consultant who helps legal teams win premises liability and security negligence cases. With deep expertise spanning healthcare, hospitality, retail, cannabis, and commercial settings, he provides the analysis, documentation, and testimony attorneys need at every stage of litigation.
What I Deliver for Your Case:
Case Assessment & Strategy — Rapid identification of security...
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Sylvie Stacy, MD, MPH
Addiction, drug abuse, and jail/prison medicine
Tavares, Florida
Addiction Medicine, Correctional Healthcare
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Substance use, Cocaine, Buprenorphine, Detox, Suboxone, Withdrawal, Fentanyl, Intoxication, Overdose, Cannabis, Methadone, Opioid, Addiction, Drug rehab, Toxicology, Methamphetamine, NCCHC, In-custody death, Jail, Prison
Sylvie Stacy, MD, MPH brings over 14 years of experience as a physician, including both direct patient care and administrative oversight focused on treating the incarcerated population and patients with addictions. She is board certified in Addiction Medicine and in Preventive Medicine & Public Health, both through the American Board of Preventive Medicine. She is licensed to practice medicine in 41 US states.
With over 10 years in correctional medicine, she has served as a corporate-level medical director for two leading providers of correctional healthcare services, offering comprehensive care within prison and jail settings. Beyond correctional settings, she has provided addiction medicine services in various community treatment settings, including SAMHSA-certified opioid treatment programs (OTPs, aka “methadone clinics”), office-based opioid treatment centers, residential treatment facilities, inpatient detox centers, intensive outpatient treatment programs, and via telemedicin...
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Mark Berenson, MD
Hospital & Emergency Medicine
Thoughtful Health Care, P-LLC
Green Cove Springs, Florida
Hospitalist, Substance Abuse
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House Call Medicine, Family Medicine, Emergency Medicine, Urgent Care, Addiction, Pain Management, Alcoholism, Cannabis, Opioids/Suboxone, Hospice, Hospital Medicine, Post Surgical Medical Consultation, Pre-op medical consultation, IV Hydration Therapy, IV Vitamin Therapy, behavioral health, Clinical Pharmacology, Telemedicine
Board certified in Family Medicine.
Over two decades of experience in Hospital and Emergency Medicine.
Owner and Medical Director of a House Call Medical Practice in New Orleans since 2012.
In house medical consultant for The St. Charles Surgical Hospital and Center for Restorative Breast Surgery in New Orleans.
Expertise in Addiction Medicine including opioid dependence, alcoholism and other drugs of abuse.
Expertise in Clinical Pharmacology, IV Hydration, IV Vitamin Therapy and Integrative Medicine.
Expertise in Telemedicine and Outpatient Acute Care.
Expertise in Geriatric Medicine, End-of-Life and Hospice Care.
Current Adjunct Instructor for the Department of Family & Community Medicine at Tulane University School of Medicine.
Former Medical Director of Gold Leaf Medical Cannabis Dispensary.
Former instructor of Inpatient Medicine at San Francisco General Hospital at The University of California, San Francisco.
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LaKesha Legree, MD
General Anesthesiologist - Ivy League Trained
Dr. Legree Medical Expert Witness Consulting Services
Georgia
Anesthesiology
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Fentanyl, Dental Anesthesia, Upper Endoscopy, Regional Blocks, Ketamine, Cannabis, Difficult airway, Wrongful death, Anesthesia standard of care, Colonoscopy, DUI & anesthesia drugs, Labor & Delivery, Anesthesia outside of the OR, Epidural & Spinal Anesthesia, Propofol, Aspiration, Office Anesthesia, Opioids, CRNA Supervision
Easily accessible,readily available, time-sensitive and responsive.
Duke Fellowship Regional Anesthesia recipient. Over 14 years in active clinical practice. University of Notre Dame graduate in South Bend, IN. Weill Cornell- New York Presbyterian Hospital trained in General Anesthesiology. Extensive ultrasound guided regional anesthesia and block placement training at the infamous orthopedic focused Hospital for Special Surgery in New York City. Intense Anesthesia and critical care training at Memorial Sloan Kettering Cancer Hospital in New York. Teaching and mentoring experience. Completed SEAK expert witness training program. Public Speaking Experience. Trial (testifying) and deposition experience for both plaintiff and defense. Medical chart review, consultation and written reporting experience. Consultations with legal teams to assist with the interpretation of medically related case information, associated timelines and standard of care breaches. Former Ketamine Clin...
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Janice Makela, M.D.
MD with 20 years of Geriatrics/Hospice experience
Oak Park, Illinois
Geriatrics, Hospice and Palliative Care
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nursing home, hospice, internal medicine, elder abuse, geriatric care, Opioids , assisted living, palliative care, advanced directives, skilled nursing facilities , Medical Marijuana, dementia, wound care, elder LGBT rights, cannabis, home care, long term care facilities, medical ethics, falls, mental competency
I am physician with 20 years' experience. Triple board certified in internal medicine, geriatric medicine, and hospice and palliative care. I also have expertise in cannabis medicine. I taught geriatric fellows at the University of Illinois at Chicago Medical Center for over a decade. I was also the medical director of a veteran's hospital SNF unit. At the VA, I was also chair of the "falls committee." In addition, I worked as a hospice and palliative care physician for a decade. I was a medical director at a geriatric value-based care clinic. I have experience in a variety of different healthcare system including academic medicine, VA healthcare systems, hospices, and value-based care healthcare, I have worked in many different settings including nursing homes, assisted living centers, clinics, home care, in-patient hospices, and hospitals. Expertise includes elder abuse, medical ethics, nursing home/assisted living care, dementia care, mental competency, elder LGBT rights, e...
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Leon M Gussow, MD
Chicago, Illinois
Toxicology, Emergency Medical Toxicology
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Alcohol, Poisoning, opiates, opioids, Marijuana, Overdose, Cannabinoids, cannabis, intoxication, Drug Screening, Dram Shop, Drug Testing, Carbon Monoxide
Over 20 years experience providing consultation and expert witness testimony in cases involving topics including alcohol, marijuana, carbon monoxide, adverse drug effects, drug tests, and urine drug screens. Extensive teaching experience with the Toxikon Consortium Medical Toxicology Fellowship Program in Chicago.
Fellow, American College of Medical Toxicology; Board Certified in Emergency Medicine and Internal Medicine; Medical Consultant, Illinois Poison Control Center; Peer Reviewer, Clinical Toxicology; Peer Reviewer, Journal of Medical Toxicology; Peer Review, Emergency Medicine Journal; Peer Reviewer, Cleveland Clinic Journal of Medicine.
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Tzvi Grossman, MD
Top Anesthesiologist and Pain Management Physician
Silver Spring, Maryland
Anesthesiology, Pain Management - Medicine
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epidural steroid injection, missed diagnosis, standard of care, spine care, ketamine, lumbar decompression, joint injections, mri, imaging, surgery, auto accident, medication management, opioids, cannabis, operating room, spinal cord stimulator, radiofrequency ablation, nerve blocks, nerve injury, labor and delivery
Dr Tzvi Grossman MD
I currently work as a pain physician in a private practice where I primarily focus on interventional procedures, most commonly spinal injections, as well minor procedures. I am employed with USAP as an Anesthesiologist, and I provide anesthesia primarily at Holy Cross Hospital in Maryland, primarily in the operating room and obstetric unit. I am a board-certified anesthesiologist by the American Board of Anesthesiology. I have an active Maryland state medical license.
I have given lectures involving postoperative complications, including diagnosis and treatment
I have served on the ethics committee during my residency at Thomas Jefferson University Hospital. I am currently a member of the peer review committee at Holy Cross Hospital.
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Caitlin Bonney, MD, FACEP
Correctional Addiction Medicine Toxicologist
Nevada
Emergency Medical Toxicology, Addiction Medicine
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carceral medicine, correctional medicine, emergency medicine, opioid use disorder, overdose, intoxication, detoxification, withdrawal, substance use disorder, drug of abuse, fentanyl, alcohol, jail and prison medicine, marijuana, cannabis, hyperactive/excited delirium, buprenorphine, methadone, drug-facilitated sexual assault
Dr. Caitlin Bonney, MD, FACEP, brings over 11 years of experience as a board-certified Emergency Medicine physician, Medical Toxicologist, and Addiction Medicine specialist with extensive experience providing and leading substance use disorder care in carceral settings. She currently serves as the Medical Director of Addiction Medicine for a large metropolitan detention center, where she oversees a comprehensive jail-based addiction treatment program serving hundreds of incarcerated individuals.
Dr. Bonney’s work in correctional health focuses on the clinical, operational, and regulatory aspects of delivering evidence-based addiction care in jails and prisons. Her experience includes program development and scale-up, including development of an opioid treatment program (OTP or “methadone clinic”); intake screening and withdrawal management protocols; implementation and oversight of medications for opioid use disorder, including buprenorphine and methadone; coordination with custo...
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Jennifer Oyadomari, CPA, CFE, CFF, ABV
Forensic Accounting & BV Expert Witness
Forensic Solutions, LLC
Henderson, Nevada
Fraud, Accounting
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Forensic Accounting, Fraud Investigation, Embezzlement, Business Valuation, Economic Damages, Lost Profits, Tracing Analysis, Financial Analysis, Litigation Support, Expert Witness, Fraud Risk Assessment, Business Interruption, Asset Tracing, Income Determination, Family Law, Cannabis
Jennifer Oyadomari is the President of Forensic Solutions, LLC, an accounting firm that specializes in forensic accounting, business valuation, lost profits, and litigation support services. Ms. Oyadomari has almost two decades of professional experience in the areas of financial accounting, business valuation, and forensic accounting. This experience includes positions in the cannabis industry and in the Forensic Advisory practice of BDO USA, LLP.
Ms. Oyadomari is the current instructor of the Fraud Examination course at the University of Nevada, Las Vegas, which is a senior- and graduate-level accounting course.
Ms. Oyadomari has testified in depositions and trials, assisted with mediations and settlements, served as a joint and neutral expert, and served as both a Special Master and as a Receiver.
Ms. Oyadomari earned her Bachelor of Science in Business Administration with an emphasis in Accounting and her Master of Science in Accounting from University of Nevada, Las Vegas....
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Caitlin Bonney, MD, FACEP
Correctional Addiction Medicine Toxicologist
Albuquerque, New Mexico
Emergency Medical Toxicology, Addiction Medicine
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carceral medicine, correctional medicine, emergency medicine, opioid use disorder, overdose, intoxication, detoxification, withdrawal, substance use disorder, drug of abuse, fentanyl, alcohol, jail and prison medicine, marijuana, cannabis, hyperactive/excited delirium, buprenorphine, methadone, drug-facilitated sexual assault
Dr. Caitlin Bonney, MD, FACEP, brings over 11 years of experience as a board-certified Emergency Medicine physician, Medical Toxicologist, and Addiction Medicine specialist with extensive experience providing and leading substance use disorder care in carceral settings. She currently serves as the Medical Director of Addiction Medicine for a large metropolitan detention center, where she oversees a comprehensive jail-based addiction treatment program serving hundreds of incarcerated individuals.
Dr. Bonney’s work in correctional health focuses on the clinical, operational, and regulatory aspects of delivering evidence-based addiction care in jails and prisons. Her experience includes program development and scale-up, including development of an opioid treatment program (OTP or “methadone clinic”); intake screening and withdrawal management protocols; implementation and oversight of medications for opioid use disorder, including buprenorphine and methadone; coordination with custo...
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LaKesha Legree, MD
General Anesthesiologist - Ivy League Trained
Dr. Legree Medical Expert Witness Consulting Services
New York
Anesthesiology
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Fentanyl, Dental Anesthesia, Upper Endoscopy, Regional Blocks, Ketamine, Cannabis, Difficult airway, Wrongful death, Anesthesia standard of care, Colonoscopy, DUI & anesthesia drugs, Labor & Delivery, Anesthesia outside of the OR, Epidural & Spinal Anesthesia, Propofol, Aspiration, Office Anesthesia, Opioids, CRNA Supervision
Easily accessible,readily available, time-sensitive and responsive.
Duke Fellowship Regional Anesthesia recipient. Over 14 years in active clinical practice. University of Notre Dame graduate in South Bend, IN. Weill Cornell- New York Presbyterian Hospital trained in General Anesthesiology. Extensive ultrasound guided regional anesthesia and block placement training at the infamous orthopedic focused Hospital for Special Surgery in New York City. Intense Anesthesia and critical care training at Memorial Sloan Kettering Cancer Hospital in New York. Teaching and mentoring experience. Completed SEAK expert witness training program. Public Speaking Experience. Trial (testifying) and deposition experience for both plaintiff and defense. Medical chart review, consultation and written reporting experience. Consultations with legal teams to assist with the interpretation of medically related case information, associated timelines and standard of care breaches. Former Ketamine Clin...
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Bethany Pridgen, MFS
Toxicology and Seized Drug Expert
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. She provides expert witness testimony and consultation for criminal and civil matters involving, but not limited to, DUI, seized drugs, cannabis, forensic testing practices, laboratory management, quality assurance standards, and reliability of testing methods.
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 has written and reviewed hundreds of administrative and technical policies, procedures, and training programs, and has analyzed and provided final review of thousands of biological and seized drug samples.
She is a lead and technical assessor for ISO 17025:2017 and performs assessments in the areas of quality management, toxicology, and seized drugs testing for ANAB and A...
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LaKesha Legree, MD
General Anesthesiologist - Ivy League Trained
Dr. Legree Medical Expert Witness Consulting Services
Charlotte, North Carolina
Anesthesiology
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Fentanyl, Dental Anesthesia, Upper Endoscopy, Regional Blocks, Ketamine, Cannabis, Difficult airway, Wrongful death, Anesthesia standard of care, Colonoscopy, DUI & anesthesia drugs, Labor & Delivery, Anesthesia outside of the OR, Epidural & Spinal Anesthesia, Propofol, Aspiration, Office Anesthesia, Opioids, CRNA Supervision
Easily accessible,readily available, time-sensitive and responsive.
Duke Fellowship Regional Anesthesia recipient. Over 14 years in active clinical practice. University of Notre Dame graduate in South Bend, IN. Weill Cornell- New York Presbyterian Hospital trained in General Anesthesiology. Extensive ultrasound guided regional anesthesia and block placement training at the infamous orthopedic focused Hospital for Special Surgery in New York City. Intense Anesthesia and critical care training at Memorial Sloan Kettering Cancer Hospital in New York. Teaching and mentoring experience. Completed SEAK expert witness training program. Public Speaking Experience. Trial (testifying) and deposition experience for both plaintiff and defense. Medical chart review, consultation and written reporting experience. Consultations with legal teams to assist with the interpretation of medically related case information, associated timelines and standard of care breaches. Former Ketamine Clin...
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Shannon C. Miller, MD, DFASAM, DLFAPA
Addiction Medicine
Forensic Addiction & Psychiatric Services, LLC
Cincinnati, Ohio
Addiction Medicine, Psychiatry
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Alcohol, Gambling, Heroin, Opiate, Fentanyl, Nicotine, Vaping, e-cigarette, Cannabis, Marijuana, Sedative, Phenibut, Xylazine, GHB, LSD, DMT, MDMA, Dextromethorphan, PCP, Ketamine
“FREE INITIAL CONSULTATION. Updated CV available at www.forensicaddictions.com. Consultation on issues relating to alcohol/drug use, addiction, gambling, etc.
Active clinical practice for 3 decades in Addiction Medicine, broadly experienced. Direct clinical experience specializing in addictions, including government and private practice, both inpatient and outpatient withdrawal management, rehabilitation, co-occurring psychiatric disorders, corrections, methadone, buprenorphine, chronic pain, drug testing, impaired providers, gambling, and a wide array of addiction-related disorders. Board Certified in Addiction Medicine, Board Certified in Psychiatry. Distinguished Fellow, American Society of Addiction Medicine, Distinguished Life Fellow of the American Psychiatric Association.
Editor of largest and perhaps most read Addiction Medicine textbook worldwide, and for 4 editions over a 20-year span. Previously served 10 years as co-founding Co-Editor of a leading addiction medicine...
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Heath Jolliff, DO
Medical Toxicology and Forensics Expert
Mid-Ohio Toxicology Services, LLC
Columbus, Ohio
Toxicology, Emergency Medical Toxicology
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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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Seth Martin, Master of Science, Medical Cannabis Science & Business
Cannabis/Hemp Extraction & Testing Lab Expert
Cannaspire
Phoenixville, Pennsylvania
Cannabis, Laboratories & Testing
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Cannabis Impairment Pharmacology & Drug Testing, Extraction Formulation & Manufacturing Practices, Cannabis Cultivation, Hemp vs THC Testing, Cannabis Expert Witness, Cannabis Product Testing & Laboratory Issues, THC, Cannabis Scientist, Cultivation & Product Quality, Cannabis Certificates of Authority COAs
Professional Profile
Seth Martin, M.S. is a cannabis and hemp industry scientist with expertise garnered from over seven years of experience in regulated markets. His background spans analytical chemistry, pharmacology, extraction and formulation chemistry, and cultivation, with hands-on work in multiple state programs including Colorado, Pennsylvania, Massachusetts, Rhode Island, Georgia, and Maine.
Seth combines advanced scientific training in medical cannabis with real-world operational leadership for multi-state operators, enabling him to clearly explain complex technical issues to attorneys, judges, and juries in both civil and business disputes involving cannabis and hemp.
Key Qualifications for Legal Matters
• Advanced cannabis-specific education as the first graduate of Thomas Jefferson University’s M.S. in Medical Cannabis Science & Business.
• Deep analytical chemistry background in testing cannabis and hemp for potency, contamination, and product integrity.
• Pharmacolog...
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Joseph M Valdez, MD, MPH, FASAM
Experienced Addiction Medicine Expert and Educator
STROUDSBURG, Pennsylvania
Addiction Medicine, Family Medicine
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Opioids, Alcohol, Addiction Medications, Withdrawal Management, Detoxification, Methamphetamine, DUI, Drug Testing, Toxicology, ASAM Criteria, Buprenorphine, Overdose, Impaired Physicians, Standards of Care, Residential Care, Cannabis, Gambling & Behavioral Addictions, Drug & Alcohol Treatment, Addiction Treatment, Naltrexone
Dr. Joseph Valdez is a board-certified physician in both Family Medicine and Addiction Medicine with over a decade of clinical, academic, and leadership experience. He currently serves as Program Director of the ACGME-accredited Addiction Medicine Fellowship at Geisinger Health System and is a Clinical Assistant Professor at the Geisinger Commonwealth School of Medicine. Dr. Valdez has extensive experience in outpatient addiction treatment, medication-assisted therapy, and the integration of addiction services into primary care. He has led clinical teams at ASAM levels 3.7 (medically managed inpatient), 2.5 (partial hospitalization program) and 1.7 (medically managed outpatient). His expertise spans the evaluation and treatment of substance use disorders, opioid & alcohol pharmacology, withdrawal management, and the neurobiology of addiction. He has served in leadership roles across multiple institutions, developed curricula, and contributed to national conversations on addiction ...
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Allison A. Muller, PharmD, DABAT, FAACT, AFACMT
Board-Certified Toxicologist - Penn/CHOP Faculty
Acri Muller Consulting, LLC
Aston, Pennsylvania
Toxicology, Pharmacology- Clinical
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opioids, carbon monoxide, marijuana, cannabis, impairment, DUI, drugs, medication errors, overdose, postmortem, toxicity, medications, drug testing, adverse event, dietary supplement, kratom, fentanyl, oxycodone, lithium, mold
Board-certified toxicologist. Fellow of the American Academy of Clinical Toxicology. Affiliate Fellow of the American College of Medical Toxicology. Registered pharmacist. Over 30 years of experience in the field of clinical toxicology.
Two decades as a clinical toxicologist and managing director at the Poison Control Center at The Children’s Hospital of Philadelphia (CHOP), consulting on toxicology cases from 21 counties in Pennsylvania and Delaware.
Expert witness experience has involved cases related to alcohol, drugs of abuse (ie, opioids, marijuana, synthetic cannabinoids, cocaine), carbon monoxide, medication errors, and postmortem toxicology.
Extensive teaching experience including as faculty at the University of Pennsylvania School of Veterinary Medicine.
*Please note that I am only able to work on cases with licensed attorneys.
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Margaret M Gedde, MD, PhD, DABPath
Cannabis Toxicology Expert Witness
Gedde Whole Health LLC
Fredericksburg, Virginia
Toxicology
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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 ...
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Eli C Neal, CPA, ABV, CFF
Cannabis Business Valuation and Damages Expert
4 Corners Financial Forensics
Bellevue, Washington
Business Damages, Cannabis
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Business Valuations, Forensic Accounting, Economic Damages, Cannabis, Lost Profits, Bankruptcy, Business Damages, Commercial Litigation, Shareholder Dissolution, Business Appraisal, Economics, Fraud, Insurance Claims, Products Liability, Lost Wages Damages, Wrongful Death Damages, Invoice Review
Eli solves financial problems for attorneys and their clients with strategic, detailed, and well-reasoned work products. Eli provides business valuations, forensic accounting, and economic damages calculations based on historical financial records and informed assumptions about the future. Ultimately, he thrives when testifying in trial and arbitration to help triers-of-fact understand the financial effect of real-world actions.
In 2018, Eli was selected as an AICPA Forensics and Valuation Services Standing Ovation Award Recipient which recognizes CPAs under 40 years old who exhibit exemplary professional achievement in the forensic accounting and valuation services arena.
