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DRE Trainings

DRE Online Continuing Education Opportunity


Delta-8 THC: Legal Status, Widespread Interest & Availability Leading to Substantial Safety Concerns

Please join us for “Delta-8 THC: Legal Status, Widespread Interest & Availability Leading to Substantial Safety Concerns,” a webinar, that will be held on Tuesday, August 30, 2022 at 2:00 pm (eastern). This is the latest installment of Traffic Tuesdays, the National TSRP Webinar Series.


Delta-9-THC is the primary psychoactive ingredient in the marijuana plant but there are also many minor THC-like compounds (THC isomers) in the native plant but in trace quantities. Therefore it is far more economical to chemically synthesize them from hemp plant derived CBD. These cannabinoid products are being sold as “Hemp” products, especially in jurisdictions where recreational THC is not legal but Hemp products are legal.  Products such as food infused with cannabis products, vaping liquids, “Hemp” sprayed with synthetic D-8 became very popular following the market glut of CBD after the “2018 Farm Bill” that Decriminalized Hemp.


While not legal, products containing delta-8 THC and others are inaccurately marketed as “safe and legal.” The psychoactive effects of these compounds are qualitatively like delta-9 THC and adversely affect human performance in a dose dependent fashion; thus, they affect a person's ability to safely operate a motor vehicle and become important in DUI cases.


There is no governmental oversight in the production of or formulation products containing THC structural analogues, which leads to unknown doses. The sale of delta-8 THC is not illegal in many jurisdictions, primarily due to the massive amount of misinformation promulgated by the cannabis industry.  This results in products often being available at tobacco shops and convenience stores in various formulations, including: vape cartridges, dried plant or “flower,” gummies.  This lack of regulatory oversight means that there are no required warning labels or packaging protections in place, and no mandated laboratory analysis to assure label accuracy as to the THC content or the product is pure and does not contain other substances such as pesticides, residual solvents, and other toxic chemicals.

Toxicology screening assays specific for delta-8 THC are not readily available in most toxicology facilities. However, due to the similarities to delta-9 THC, most screening assays and confirmatory assays will detect delta-8 THC, all be it as an interference, which causes difficulties in the proper investigation and prosecution of DUI cases.

Another concern with these synthetic THC isomers is that the chemical process involves solvents and heavy metals which can contaminate the final products. These chemicals are more toxic than the THC isomers, causing physical harm to those who consume them.

This webinar will provide updated information on all of the above matters, including delta-8, delta-10 THC, and other emerging isomers.  It will discuss the prevalence of such substances, detection issues related to them, their toxicology, and public safety risks posed by these substances. Additionally, legal issues related to these substances and DUI cases will be discussed so that prosecutors and law enforcement officers that deal with DUI cases will have sufficient background knowledge into these issues to better handle their cases.

Presenters: Chip Walls, Forensic Toxicologist

There is no charge to attend this webinar, but you must register in advance. Click below to register:

After registering you will receive a confirmation email containing instructions on how to join the webinar. Please make sure that you retain the confirmation email sent to you, and please be careful to enter your email address correctly. You will not be able to join the webinar if you do not receive a confirmation email. If you will be unable to attend this webinar at the scheduled time but would still like to watch it, please go ahead and register as indicated. Everyone who is registered will receive a link to the recording of the webinar regardless of whether they attended.

If you have any questions or need any assistance registering for the webinar, please feel free to contact Vin Petty at

Title: Getting More With Honey: Essential Skills for Interaction with the DUI Suspect

Date: Wednesday, September 7, 2022

Time: 1p-230p Eastern

Presenter: Sgt. Anthony Palese, FHP / Trp. Joseph Farley, FHP

Registration Link:

Description: Often, suspects at traffic stops can be uncooperative and belligerent -- especially when they are impaired.  Because of that, a Law Enforcement Officer's interpersonal skills are vital for successful cooperation.  This course will outline several techniques used to encourage cooperation during DUI investigations.  The skills obtained through this course will enable law enforcement officers to better investigate DUI cases to obtain successful cooperation and enhance a prosecutor's ability to proceed.  It will also provide prosecutors with information on these skills to share with officers to better the cases that you will receive to prosecute.  Topics discussed will include: posturing and what it means for the investigation; techniques used to encourage cooperation; ways to overcome a difficult investigation; and tips for better selling the best version of yourself and your cases for successful prosecution.

Title: Hallucinogen Highway: Hallucinogen Impairment & DUI Investigations

Date: Wednesday, September 21, 2022

Time: 1p-230p Eastern

Presenter: Sgt. Anthony Palese, FHP / Trp. Joseph Farley, FHP

Registration Link:

Description: Some of the most difficult DUI suspects to deal with are those that are impaired by Hallucinogens.  This session will explore Hallucinogens and provide both law enforcement officers and prosecutors with specific information on this dangerous category of drugs so that the investigation and prosecution of Drug DUI Cases involving Hallucinogens can be better handled.  It will include a discussion of several aspects of Hallucinogens, including the history behind hallucinogens and the usage of Hallucinogens both recreationally and medicinally.  It will also examine the use of Hallucinogens in Rave culture and how such usage can lead to Drug-impaired Driving cases, and the various items of paraphernalia used with Hallucinogens.  Additionally, it will also discuss a review of the indicators and symptoms associated with Hallucinogen impairment so that both law enforcement officers and prosecutors can better investigate and prosecute Drug DUI Cases involving Hallucinogens.

Title: Mellanby Effect: A LEO's Perspective on Homeostasis & Burn Off

Date: Tuesday, September 27, 2022

Time: 2:00p-3:30p Eastern

Presenter: Det. Tom Heller, Seattle Police Department

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Description: This session will explain from a law enforcement perspective the many factors to review to determine if a defendant is safely off the roadway, including specifics on the scientific phenomena at play in why alcohol impaired people choose to drive.  It will explain the background behind homeostasis and burn-off, and discuss how these scientific factors come into play in a DUI case so that both prosecutors and law enforcement officers can better explain and articulate these factors in order to better investigate and prosecute DUI cases.  This session is a crucial follow-up to a prior session on the Mellanby Effect conducted by Washington State TSRP Miriam Norman, which explained these factors from a prosecutor's perspective; this session will provide both prosecutors and law enforcement officers with even more information on these factors, this time from the eyes of a law enforcement officer.

Title: DUI Report Writing: Best Practices for Completing the DUI Alcohol/Drug Influence Report

Date: Tuesday, October 18, 2022

Time: 2p-330p

Presenter: Vin Petty, Florida TSRP

Registration Link:

Description: This session will provide an in-depth discussion of techniques and tips to improve the documentation of all aspects of a DUI Investigation.  This presentation is taught from a prosecutor's perspective and is designed to assist the law enforcement officer in improving his or her DUI Reports, so that a prosecutor can better use them to succeed in court.  It will also serve as a way for prosecutors to better understand what needs to be included in a DUI Report so that they can work to better educate the law enforcement officers that they deal with.  A variety of DUI Reports submitted from various agencies in actual DUI Prosecutions -- both good and bad examples -- will be discussed and serve as examples of how to better prepare and use the DUI Alcohol/Drug Influence Report in DUI cases.

Title: Developing Your DRE/DUI Expertise

Date: Wednesday, November 2, 2022

Time: 1p-230p Eastern

Presenter: Chuck Matson

Registration Link:

Description: Sharpen your axes and become more than a clue counter or box checker. This dynamic schooling will explore various appearance, behavior, performance, and autonomic responses that are too frequently overlooked and underappreciated during impaired driving investigations. Attendees will be better able to understand the importance of recognizing and documenting more than just the ‘standardized’ clues and average DRE ranges. This training will allow participants to take another step in understanding human physiology and how when drug-related changes occur to the eyes, and other areas of the central nervous system, it is actual impairment.

Title: 2022 Impaired Driving Curriculum Updates

Date: Wednesday, November 9, 2022

Time: 1:00p-2:30p Eastern

Presenter: Kyle Clark, DECP National Project Manager - IACP

Registration Link:

Description: The National Highway Traffic Safety Administration (NHTSA) and the International Association of Chiefs of Police (IACP) strive to ensure impaired driving enforcement training contains the most up-to-date information and tactics to enhance traffic safety. Kyle Clark will provide you with the significant changes made in the 2022 SFST, ARIDE, and DRE curricula, along with some of the basis for these changes and how you can make recommendations for future revisions.

Title: DUI Cases and the HIPAA Myth

Date: Tuesday, November 15, 2022

Time: 2p-330p

Presenter: Vin Petty, Florida TSRP

           Ken Stecker, Michigan TSRP

Registration Link:

Description:  This presentation will cover the basic legal principles behind the Health Insurance Portability and Accountability Act also known as HIPAA. The intent behind the law will be explained as well as some of the general provisions of the law.   This will give prosecutors and law enforcement a basic understanding of the guiding legal nuances of the law.  The presentation will then cover specific principles relating to criminal law and the built in exceptions for law enforcement and prosecutors conducting investigations into criminal matters, such as DUI Cases. There will be several statutory exceptions to the general prohibition against releasing protected information including oral release of information.  Lastly, the presentation will cover methods in jurisdictions to work more closely with hospitals.  Attendees will learn methods to find hospital personnel to keep the lines of communication open on legal matters to better investigate DUI cases.  Lastly. Attendees will receive example forms that they can use to better navigate the legal roadblocks to obtaining protected health information when investigating DUI cases.

Title: Cannabis and the Eyes

Date: Wednesday, November 30, 2022

Time: 1p-230p Eastern

Presenter: Karl Citek, OD, PhD, FAAO - Professor of Optometry

Registration Link:

Description: As cannabis DUI cases are on the rise, it is crucial for both prosecutors and law enforcement to understand the specifics behind cannabis impairment.  A hotly discussed issue in this realm is that of the effects of Cannabis on the Eyes.  This session will seek to educate both prosecutors and law enforcement on this important area.  It will describe and discuss various changes to pupil responses and eye movements that can occur with cannabis impairment, including: mydriasis, rebound dilation, eyelid tremors, lack of convergence, lack of smooth pursuit, and saccadic intrusions.

Title: Forensic Toxicology in DUI Cases: Bringing Out the Nerd in You

Date: Tuesday, December 13, 2022

Time: 2p-330p

Presenter: Amy Miles

           Director of Forensic Toxicology 

           Wisconsin State Laboratory of Hygiene

           UW School of Medicine and Public Health

           National Resource Toxicologist

Registration Link:

Description:  You have received the toxicology report back from your laboratory for your DUI case.  Listed on the report are drugs that you know are not the active parent, but you observed impairment.  Now what?  What did the subject ingest?  What drugs are there as a result of the body's metabolism?  Your lab is always a great resource, yet there is some preliminary information you can learn to help navigate the report before you must write an email or make a call to the lab.  This presentation will discuss the differences between active drugs, their metabolites as well as various precursors and derivatives so that one can better understand and handle drug DUI cases using several examples of specific cases.

Title: Marijuana & Driving in 2023: It’s Not Just Delta-9-THC Anymore

Date: Tuesday, January 17, 2023

Time: 2p-330p


 Erin L. Karschner, Ph.D., F-ABFT

  Forensic Toxicologist, Armed Forces Medical Examiner System

Rebecca L. Hartman, Ph.D., F-ABFT

  Chief Toxicologist, Monroe County Office of the Medical Examiner Rochester, NY

Registration Link:

Description:  Marijuana is the second most frequently encountered substance in driving under the influence (DUI) cases in the United States. Legalization has resulted in more drivers exposed to Delta-9-THC, the primary intoxicating component of marijuana. In states that have not yet legalized marijuana, man-made variants of Delta-9-THC are often sold in products as legal alternatives. These variants, or isomers, can be found in stores and online in infused cannabis flower, vaping oils, and in various edible forms. In particular, Delta-8-THC and Delta-10-THC isomers are now appearing in seized drug and DUI cases. This presentation will describe indicators of marijuana intoxication on the road, the most reliable methods of detecting marijuana use during a Drug Recognition Expert evaluation, and the importance of blood collection time for toxicology results. Cases involving THC isomers will be highlighted, and analysis and interpretation issues will be discussed.

Title: DRE and the IACP 2023: Updates & Enhancements

Date: Tuesday, February 21, 2023

Time: 2:00p-3:30p Eastern

Presenter: Joe Abrusci, Project Manager – DECP Eastern Region, International Association of Chiefs of Police

                   Jim Maisani, Project Manager – DECP Central Region, International Association of Chiefs of Police

                  Chuck Hayes, Project Manager – DECP Western Region, International Association of Chiefs of Police

Registration Link:

Description: This session is intended to provide an update on projects related to and affecting the DRE program that are underway, as well as new offerings to help further ARIDE and DRE training.  Additionally, it will provide updates on recent and pending Frye/Daubert Hearings regarding the DRE program.  Finally, it will provide information on judicial and prosecutor training related to the DRE program.