Drug Recognition Expert School Exam
Questions with correct Answers 2025/2026
A+ Graded.
What does the term "drug" mean, as it is used in this course? - ANS -A drug is any
substance that, when taken into the human body, can impair the ability of the person to
operate a motor vehicle safely.
What are the seven categories of drug? To which category does alcohol belong? To
which category does Cocaine belong? - ANS -CNS depressants, CNS Stimulants,
Hallucinogens, Dissociative Anesthetics, Narcotic Analgesics, Inhalants, Cannabis ;
What does "polydrug use" mean? - ANS -Ingesting drugs from two or more drug
categories.
What is a "speedball"? What is a "spacebase"? - ANS -Cocaine and Heroin; Crack and
PCP
In the 2013-2014 National Roadside Survey of Alcohol and Drug Use by drivers, more
than____% of drivers, tested positive for at least one illegal drug. - ANS -20%
State four reasons why it is important not to rely simply on a chemical test to establish a
subject's drug impairment. - ANS -1.) develop articulable evidence of drug impairment
2.) suspect may refuse chemical tests
3.) chemical tests do not indicate recency of use
4.) suspect may be suffering from injury or illness
What categories of drugs were included in the Johns Hopkins Laboratory Study? - ANS
-CNS depressants
CNS stimulants
Cannabis
In what percentage of cases in the Los Angeles Field Validation Study did blood tests
confirm the DRE's opinion that PCP was present? - ANS -92%
, What percentage of subjects were found to be polydrug users in the LAPD Field
Validation Study? - ANS -72%
What was the landmark State Supreme Court case that upheld the use of HGN as
evidence of impairment? - ANS -State(AZ) vs. Blake
What do we call the traditional standard for admissibility of scientific evidence, set by the
US Supreme Court? - ANS -Frye Standard
Give three important reasons for conducting drug evaluation and classification
evaluations in a standardized fashion? - ANS -1.) help avoid mistakes
2.) help promote and maintain professionalism and consistency among DRE's
3.) help secure the court's acceptance of your testimony
What are the twelve components of the drug evaluation process? - ANS -1.) Breath test
2.) Interview with the arresting officer
3.) Preliminary Examination (pulse,initial estimate of onset and pupil size
4.) Eye exam
5.) Divided attention tests
6.) Vital signs Exam (second pulse)
7.) Dark room Exam
8.) Muscle tone Exam
9.) Injection site Exam (third pulse)
10.) Subject Interview
11.) Opinion of the evaluator
12.) Toxicology
How many times is a pulse rate measured during the drug influence evaluation? - ANS -3
Are the diameters of the pupillometer's circles/semi-circles indicated in centimeters,
millimeters or micrometers? - ANS -Millimeters
What formula expresses the approximate statistical relationship between blood alcohol
concentration and nystagmus onset angle? - ANS -50- Angle of onset
Which of the seven categories of drugs ordinarily do not cause nystagmus? - ANS -CNS
Stimulants, Hallucinogens, Narcotic Analgesics, cannabis
How many heel-to-toe steps is the subject instructed to take, in each direction, on the
walk-and-turn test? - ANS -9
What period of time is the subject required to estimate during the Modified Romberg
Balance test? - ANS -30 seconds
Questions with correct Answers 2025/2026
A+ Graded.
What does the term "drug" mean, as it is used in this course? - ANS -A drug is any
substance that, when taken into the human body, can impair the ability of the person to
operate a motor vehicle safely.
What are the seven categories of drug? To which category does alcohol belong? To
which category does Cocaine belong? - ANS -CNS depressants, CNS Stimulants,
Hallucinogens, Dissociative Anesthetics, Narcotic Analgesics, Inhalants, Cannabis ;
What does "polydrug use" mean? - ANS -Ingesting drugs from two or more drug
categories.
What is a "speedball"? What is a "spacebase"? - ANS -Cocaine and Heroin; Crack and
PCP
In the 2013-2014 National Roadside Survey of Alcohol and Drug Use by drivers, more
than____% of drivers, tested positive for at least one illegal drug. - ANS -20%
State four reasons why it is important not to rely simply on a chemical test to establish a
subject's drug impairment. - ANS -1.) develop articulable evidence of drug impairment
2.) suspect may refuse chemical tests
3.) chemical tests do not indicate recency of use
4.) suspect may be suffering from injury or illness
What categories of drugs were included in the Johns Hopkins Laboratory Study? - ANS
-CNS depressants
CNS stimulants
Cannabis
In what percentage of cases in the Los Angeles Field Validation Study did blood tests
confirm the DRE's opinion that PCP was present? - ANS -92%
, What percentage of subjects were found to be polydrug users in the LAPD Field
Validation Study? - ANS -72%
What was the landmark State Supreme Court case that upheld the use of HGN as
evidence of impairment? - ANS -State(AZ) vs. Blake
What do we call the traditional standard for admissibility of scientific evidence, set by the
US Supreme Court? - ANS -Frye Standard
Give three important reasons for conducting drug evaluation and classification
evaluations in a standardized fashion? - ANS -1.) help avoid mistakes
2.) help promote and maintain professionalism and consistency among DRE's
3.) help secure the court's acceptance of your testimony
What are the twelve components of the drug evaluation process? - ANS -1.) Breath test
2.) Interview with the arresting officer
3.) Preliminary Examination (pulse,initial estimate of onset and pupil size
4.) Eye exam
5.) Divided attention tests
6.) Vital signs Exam (second pulse)
7.) Dark room Exam
8.) Muscle tone Exam
9.) Injection site Exam (third pulse)
10.) Subject Interview
11.) Opinion of the evaluator
12.) Toxicology
How many times is a pulse rate measured during the drug influence evaluation? - ANS -3
Are the diameters of the pupillometer's circles/semi-circles indicated in centimeters,
millimeters or micrometers? - ANS -Millimeters
What formula expresses the approximate statistical relationship between blood alcohol
concentration and nystagmus onset angle? - ANS -50- Angle of onset
Which of the seven categories of drugs ordinarily do not cause nystagmus? - ANS -CNS
Stimulants, Hallucinogens, Narcotic Analgesics, cannabis
How many heel-to-toe steps is the subject instructed to take, in each direction, on the
walk-and-turn test? - ANS -9
What period of time is the subject required to estimate during the Modified Romberg
Balance test? - ANS -30 seconds
