THC/Cannabis Toxicology: Recognizing Impairment (On-Demand)

General Credits:
Original Date Of Course:



Course Description

This is a 60-minute presentation that reviews several different types of medical records.

With the legislation of marijuana and the recent innovations in the delivery and ingestion of Cannabis in both psychoactive and non-psychoactive forms, there has been a surge of Cannabis related cases in the criminal arena. This presentation is designed to educate attorneys and investigators on the DRE process and how it applies when Cannabis is the drug perceived to be resulting in impairment.


  • Be familiar with the chemical breakdown of THC and understand the psychoactive vs non-psychoactive metabolites.
  • Have an understanding of the DRE 12-step process.
  • Be aware of the pitfalls of Field Sobriety Tests and the DRE examination.
  • Be familiar with some studies and court cases related to THC and DRE examinations.


  1. Chemical breakdown/Toxicology
  2. Retrograde extrapolation discussion
  3. DRE- a review of the 12-step evaluation
  4. Scientific studies
  5. Court cases
  6. Pitfalls


Ed Barley, BS

Credit Details

Course Type

Course Instructor

Ed Barley, BS

Original Date Of Course

General Credits