It’s Not About the Number – The Impact of Drug Per Se Laws

Monday, March 10, 2025

10:15 AM – 11:30 AM PT

Location: 201

Moderator(s)

Amy Miles

State Toxicologist
WI State Laboratory of Hygiene, Wisconsin

Speaker(s)

Jim Eberspacher

Director
Impaired Driving Solutions @ All Rise
Ashley Schluck

Wyoming Traffic Safety Resource Prosecutor
Wyoming Highway Safety Program, Wyoming
Chris Heartsill, D-ABFT-FT

Regional Toxicolgy Liaison
NHTSA/SOFT Region 7
Farmers Branch , Texas

Forensic toxicology plays a fundamental role in both the investigation and prosecution of DUI offenses, with the results of toxicology testing significantly influencing prosecution and treatment decisions. It is imperative for all stakeholders—law enforcement officers, prosecutors, defense attorneys, judges, and those interpreting highway safety data—to fully understand the limitations of toxicology testing and the nuances of interpreting drug concentrations in biological matrices.

Historically, the reliance on a per se alcohol limit has established a precedent that may not accurately reflect driving impairment, particularly when drugs are involved. The introduction of per se limits for THC in many states has further complicated the matter. This session will delve into the complexities of interpreting drug concentrations and will equip you with the knowledge and tools necessary to provide accurate and informed insights.