Forensic chemist and serves as an expert witness with more than 41 years of experience in analytical chemistry, general forensic evaluations, and forensic chemistry. He has more than 40 years of expert witness experience, including depositions and court testimony, and has performed chemical, physical, analytical, microscopic, and general forensic analyses in thousands of criminalistics, subrogation, industrial troubleshooting, construction defect, liability claim, criminal, and civil investigations. His background includes forensic scientist, senior forensic chemist, principal, vice president, laboratory leadership, and senior managing consultant roles involving training, quality control, productivity, field investigations, laboratory testing, and forensic laboratory services.

His forensic chemistry expertise includes building envelope and component failures, chemical and microscopic analysis and research, chemical failure analysis, chemical manufacturing, tampering, incompatibility, drugs, hazardous material issues, environmental contamination, polymer characterization, and chemical process troubleshooting. He also has experience with fire, bombing, and fireworks investigations; fire and explosion origin-and-cause analysis; scene documentation; laboratory analyses; scenario testing; fire investigation case review; criminal defense reanalysis and case review; failure analysis of complex polymeric materials; and laboratory testing involving construction defect and liability matters.

He holds B.S. degrees in Chemistry and Oceanography. His credentials include Certified Fire Investigator through the International Association of Arson Investigators, Certified Fire and Explosion Investigator through the National Association of Fire Investigators, Washington State Department of Ecology accreditation for methamphetamine analysis, and American Board of Criminalistics certification with specialty areas in fire debris and drug analysis. His professional involvement includes the American Academy of Forensic Sciences, American Board of Criminalistics, International Association of Arson Investigators, National Association of Fire Investigators, Northwest Association of Forensic Scientists, and Technical Working Group on Fire and Explosives. His research, authorship, presentations, and instruction address fire debris analysis, forensic laboratory methods, chemical compatibility, construction defect materials, petroleum product analysis, clandestine drug manufacturing, evidence recognition and preservation, and general forensic science.