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Pasadena – The Regional Conference “The Medical Foundations of Visual Systems Testing”

June 19 @ 8:00 am - June 21 @ 5:00 pm CDT


The Texas Drug Recognition Expert Program

Regional Conference on Impaired Driving Enforcement


The Medical Foundations of

Visual Systems Testing

Presenter:  Dr. Karl Citek, O.D.


Many courts will not qualify a DRE as an expert unless he or she has received training from a medical professional. This course will provide the medical and scientific foundations of the various components of the DRE protocol, including the eye tests, vital signs and psychophysical and divided attention tasks. Common medical conditions, rule-outs and alternative explanations for observed signs will be discussed. The course will include numerous videos, classroom demonstrations and an alcohol workshop.

This program is intended for officers who are Certified Drug Recognition Experts (DREs), SFST Instructors, and experienced DWI officers.

Topics Include:

  • Anatomy and physiology of the eye and the central nervous system
  • Development and control of eye responses
  • Use and abuse of drugs
  • Effects of drugs on the body, the eyes and perception
  • Effects of medical and environmental conditions
  • Testing of eye signs
  • Legal aspects of testing at the traffic stop and the DRE evaluation
  • Trial preparation


Eligible for 24 hours TCOLE credit.  See course flyer here.


This course by the Institute of Police Technology and Management is FREE to all Texas peace officers.  The training is made possible through a grant from the Texas Department of Transportation.


Conference Schedule:

Day 1: 8 am to 5 pm

Day 2: 8 am to 5 pm

Day 3: 8 am to 5 pm


June 19 @ 8:00 am CDT
June 21 @ 5:00 pm CDT
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Carlos Champion
(512) 279-7176
View Organizer Website


Les Early Firearms Training Center
6052 Genoa Bluff Road
Pasadena, TX 77507 United States
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Registrations are closed for this event