Dr. Charlotte Helenzera, BSc, CSci, CChem, FRSC

Dr. Charlotte Helenzera, BSc, CSci, CChem, FRSC is a forensic toxicology expert specializing in forensic pharmacology and drug influence analysis. With a career encompassing forensic report interpretation, alcohol back calculations, and the effects of substances on human behavior, she brings a detailed analytical framework to her litigation work. Her work centers on investigating alcohol and drug influence, assessing forensic evidence, and evaluating whether substance-related standards were breached.

Dr. Helenzera has been retained in numerous expert witness and consulting engagements across various jurisdictions, involving cases of drink/drug driving under the influence, illicit drug use, and alcohol/drug-assisted assaults. Her BSc in Chemistry, along with her CSci, CChem, and FRSC certifications, reinforce her ability to deliver objective, defensible analyses. She is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving the effects of alcohol, drugs, and medication.