DRE Evaluation Procedures 1 — Questions and Answers
Question 1: What is the first step in the DRE 12-step evaluation process?
- Toxicological examination
- Interview of the arresting officer
- Breath alcohol test (Correct answer)
- Dark room examination
Correct answer: Breath alcohol test
The very first step in the Drug Recognition Expert (DRE) 12-step evaluation process is to administer a breath alcohol test. This is crucial to determine if alcohol is present and, if so, to what extent it contributes to the observed impairment. This step helps to rule out or quantify alcohol as the primary cause before proceeding to evaluate for other drug categories.
Question 2: Why is the preliminary examination important in the DRE process?
- To begin the interview
- To collect fingerprints
- To rule out medical issues (Correct answer)
- To administer a sobriety test
Correct answer: To rule out medical issues
The preliminary examination in the DRE process is vital for ruling out medical conditions or injuries that could mimic drug impairment symptoms. This ensures that observed signs are not misinterpreted as drug-related when they might stem from a medical emergency, protecting the individual and ensuring an accurate assessment. It's a critical safety and diagnostic step.
Question 3: Which eye test is used to detect drug impairment?
- Depth perception test
- Color vision test
- Horizontal Gaze Nystagmus (HGN) test (Correct answer)
- Visual acuity test
Correct answer: Horizontal Gaze Nystagmus (HGN) test
The Horizontal Gaze Nystagmus (HGN) test is a standardized field sobriety test used by DREs to detect drug impairment. It assesses the involuntary jerking of the eye as it moves horizontally. Certain drug categories, particularly central nervous system depressants, dissociative anesthetics, and inhalants, are known to cause or enhance HGN, making it a key indicator of impairment.
Question 4: What is assessed during the dark room examination?
- Skin temperature
- Pupil size and reactivity (Correct answer)
- Coordination
- Heart rate
Correct answer: Pupil size and reactivity
During the dark room examination, DREs specifically assess the suspect's pupil size under different lighting conditions and their reactivity to light. This helps identify drug categories that cause pupil dilation (mydriasis) or constriction (miosis), or those that affect the pupils' ability to react normally to light. It's a key physiological indicator in drug evaluation, providing crucial evidence of impairment.
Question 5: Why are vital signs recorded during the DRE evaluation?
- To measure sleep quality
- To detect emotional distress
- To identify physiological signs of drug use (Correct answer)
- To assess hydration
Correct answer: To identify physiological signs of drug use
Vital signs, including pulse, blood pressure, and body temperature, are recorded during a DRE evaluation because different drug categories have predictable physiological effects on these parameters. For example, stimulants typically elevate pulse and blood pressure, while depressants can lower them. Monitoring these changes helps the DRE correlate observed physical symptoms with specific drug categories to determine impairment.
Question 6: What is the final step in the DRE 12-step process?
- Dark room check
- Interview of arresting officer
- Toxicological examination (Correct answer)
- Coordination test
Correct answer: Toxicological examination
The DRE 12-step process is a systematic and comprehensive evaluation designed to determine if a subject is impaired and, if so, by what category of drug. The toxicological examination, typically involving blood or urine tests, is the final and most definitive step. It provides scientific confirmation of the presence of drugs in the subject's system, validating the DRE's observations and opinions.
DRE Evaluation Procedures 1
What is the first step in the DRE 12-step evaluation process?