Ayako (Aya) Chan-Hosokawa is a forensic toxicologist and toxicology team manager with NMS Labs in Horsham, PA. She is certified as a Diplomate through the American Board of Forensic Toxicology (ABFT) and holds a Texas Forensic Analyst License in the category of Toxicology (Interpretive). She is an active member of the Society of Forensic Toxicologists (SOFT), the American Academy of Forensic Sciences (AAFS), the International Association of Forensic Toxicologists (TIAFT), International Council on Alcohol, Drugs and Traffic Safety (ICADT), and National Safety Council (NSC).
Professionally, Ms. Chan-Hosokawa’s primary area of interest is drug-impaired driving (DUID); she evaluates positivity data, the changes in drug trends, and observed blood drug concentrations and has presented the findings at national conferences. Her emphasis is to help maintain NMS Labs’ leadership role in human performance toxicology testing by developing appropriate scopes of analyses at the sensitivities required for DUID investigations and working closely with DREs on their observations and inputs. She has testified over 150 times in various jurisdictions (for both prosecution and defense) and provides written expert opinion reports. She also serves as a faculty member for the Pennsylvania District Attorneys Institute (PDAI) for their annual training of prosecutors and investigators. Her recent publications include Emergence of Delta-8 Tetrahydrocannabinol in DUID Investigation Casework: Method Development, Validation and Application, 11-Year Study of Fentanyl in Driving under the Influence of Drugs Casework, and Gabapentin in drugged driving investigations.