Dr. Norris has training in both pharmacology and toxicology and has been practicing for over 20 years. He has provided testimony to governmental agencies, served as an industrial site crisis team member, and acted as a consultant to media (BBC). Dr. Norris’ employment titles have included: Assistant Vice President of Toxicology & Carcinogenesis and Head of Inhalation Toxicology. He is a diplomate of the American Board of Toxicology and an EU Registered Toxicologist. He has served as an expert witness in the US, UK and Hong Kong. He works with both plaintiff and defendant law firms.