Cannabis Toxicity Expert Witness Margaret Gedde

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 13 of those in cannabis medicine. She has been in active practice for 9 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 prepare to cross-examine witnesses who testify regarding interpretation of THC blood tests. 

Dr. Gedde is knowledgeable about the environment around medical marijuana for physicians and has been qualified in civil and administrative courts as an expert witness regarding the practice of cannabis medicine. As a medical toxicology expert witness, Dr. Gedde’s background also includes post-doctoral research into the molecular biology of bacterial pathogenesis at the University of California at Berkeley and 5 years in the pharmaceutical industry as a clinical microbiology director and consultant. 

Expertise: 

Dr. Gedde provides clinical expertise in medical use of cannabinoids through her cannabis-focused telemedicine practice. She is known for a clinical focus in use of cannabinoids in pediatric epilepsy.