Garry Metcalfe

Garry Metcalfe, B.S., has worked in the field of toxicology since 2001. He began his career working postmortem toxicology cases with the Office of the Chief Medical Examiner for the state of Oklahoma. He spent his time at the medical examiner’s office testing a variety of specimens like blood, liver, urine, gastric contents, bile and vitreous humor. After 12 years there, he transitioned to working for the Oklahoma State Bureau of Investigations (OSBI), where his focus switched from postmortem toxicology to antemortem toxicology. At OSBI, he tests mostly blood and urine for the presence of drugs in suspected DUI cases. His role requires him to perform tests for the presence of various drugs such as THC, synthetic cannabinoids and other designer drugs, prepares a report and testifies on the results in court. He has been deemed an expert witness in the state of Oklahoma. He has assisted in the validation of newer synthetic cannabinoids to existing procedures at the OSBI. As a part of his role, he has audited the Drug Recognition Expert program. While at the OSBI, he took over the administration of the Forensic Science Academy, which is a program designed by the OSBI to provide a better understanding of the test performed at the OSBI to judges, prosecutors and defense attorneys in the state of Oklahoma. Garry was recently promoted to Supervisor of the Toxicology Unit at OSBI. Garry has completed the course for ANAB (ANSI National Accreditation Board). This course makes him eligible to access other laboratories for accreditation by ANAB. He also is a former assistant teacher for the University of Central Oklahoma. In this role he assisted in a senior level Forensic Toxicology Laboratory class. Garry has volunteered for numerous community outreach programs to educate the community on the field of toxicology. Garry is a former board member and past President of the Southwestern Association of Forensic Toxicology (SAT). He has also attended the Borkenstein Drug Course, DEA Forensic Chemist Seminar and the Midwest Forensic Resource Training Program.