DRE COURSE EXAM QUESTIONS WITH
CORRECT ANSWERS 2025/2026 A+
GRADED 100% VERIFIED.
The 2013-2014 National Roadside Survey of Alcohol and Drug Use by Drivers.
(Approximately 30,000 drivers were asked to provide an oral fluid or blood sample.) -
ANS -About 20% of drivers tested positive for at least one drug. More than 15% of drivers
tested positive for at least one illegal drug.
Facts of the DECP (Drug Evaluation and Classification Program) (1/4) - ANS -The
program began in the early 1970's in response to a growing awareness of impaired
drivers under the influence of drugs. The DECP had started with Sergeant Dick Studdard
(Traffic Officer) and Len Leeds (Narcotics Officer)
Facts of the DECP (Drug Evaluation and Classification Program) (2/4) - ANS -In 1979 the
program was officially recognized by LAPD. By the early 1980's NHTSA completed its
validation of the SFSTs and began assisting the LAPD in validating the DRE program.
Facts of the DECP (Drug Evaluation and Classification Program) (3/4) - ANS -The DRE
three-part determination: 1. It establishes the subject is impaired and verifies the alcohol
level is not consistent with the degree of impairment that is evident. 2. Uses simple
evaluation procedures to determine whether the impairment may stem from illness or
injury, requiring medical attention. 3. Lastly, it uses evaluation procedures to determine
what category (or categories) of drugs are the likely cause of the impairment.
Facts of the DECP (Drug Evaluation and Classification Program) (4/4) - ANS -Five
reasons for a standardized procedure: 1. To be able to articulate suspicion of drug
influence. 2. To use DRE's observation and expertise if the subject refuses testing. 3. To
help identify that a drug is psychoactive. 4. To help point laboratory technicians toward a
specific drug category to reduce testing costs. 5. Lastly, a DRE can help to identify if
impairment is being caused by medical problems.
John Hopkins Study (Laboratory Validation Study which was conducted in 1984 at John
Hopkins University in Maryland) 1/2 - ANS -LAPD participants included Dick Studdard,
Jerry Powell, Pat Russell, and Doug Laird. Volunteers each took a "pill" and smoked a
"cigarette." The "pill" contained either: a placebo, Secobarbital, Valium, or
d-amphetamine. The "cigarette" contained either: a placebo or THC.
, John Hopkins Study (Laboratory Validation Study which was conducted in 1984 at John
Hopkins University in Maryland) 2/2 - ANS -The DREs classified 95% of the drug free
subjects as "not impaired." They classified 98.7% of the subjects who received "strong"
doses. They correctly identified the category of drug for 91.7% of the "strong" dose
cases.
Los Angeles Field Validation Study (It was conducted in 1985 and involved 173 subjects
who were arrested on suspicion of driving under the influence of drugs. - ANS -This
study used 28 DREs from LAPD and the L.A. area. For more than 92.5% of the subjects,
the blood test confirmed the presence of at least one drug category "predicted" by the
DREs.
Oregon State v. O'Key (1995) - HGN Test admissible - ANS -Court case explaining that
the HGN test results are scientific in nature. Admissibility is subject to a foundation
showing that the officer who administered the test was properly qualified, that the test
was administered properly, and that the test results were recorded accurately.
Information about the Drug Evaluation and Classification Process (1/2) - ANS -The DEC
is a systematic and standardized method of examining a subject to determine if the
subject is impaired, if impaired, is the impairment a result of injury, illness, or is it drug
related, and if it is drug related, what category (or categories) of drugs is (or are) the
likely cause of the subject's impairment?
Information about the Drug Evaluation and Classification Process (2/2) - ANS -Based on
a variety of observable signs and symptoms that are known to be reliable indicators of
drug impairment: subject's appearance, subject's behavior, and performance of carefully
administered psychophysical tests.
Drug Influence Evaluation Steps - ANS -1. Breath alcohol test
2. The interview of the arresting officer
3. Preliminary examination
4. Examinations of the eyes
5. Divided attention tests
6. Examination of vital signs
7. Dark room examinations
8. Examination of muscle tone
9. Examination for injection sites
10. Subject's statements and other observations
11. Opinion of Evaluator
12. Toxicological examination
CORRECT ANSWERS 2025/2026 A+
GRADED 100% VERIFIED.
The 2013-2014 National Roadside Survey of Alcohol and Drug Use by Drivers.
(Approximately 30,000 drivers were asked to provide an oral fluid or blood sample.) -
ANS -About 20% of drivers tested positive for at least one drug. More than 15% of drivers
tested positive for at least one illegal drug.
Facts of the DECP (Drug Evaluation and Classification Program) (1/4) - ANS -The
program began in the early 1970's in response to a growing awareness of impaired
drivers under the influence of drugs. The DECP had started with Sergeant Dick Studdard
(Traffic Officer) and Len Leeds (Narcotics Officer)
Facts of the DECP (Drug Evaluation and Classification Program) (2/4) - ANS -In 1979 the
program was officially recognized by LAPD. By the early 1980's NHTSA completed its
validation of the SFSTs and began assisting the LAPD in validating the DRE program.
Facts of the DECP (Drug Evaluation and Classification Program) (3/4) - ANS -The DRE
three-part determination: 1. It establishes the subject is impaired and verifies the alcohol
level is not consistent with the degree of impairment that is evident. 2. Uses simple
evaluation procedures to determine whether the impairment may stem from illness or
injury, requiring medical attention. 3. Lastly, it uses evaluation procedures to determine
what category (or categories) of drugs are the likely cause of the impairment.
Facts of the DECP (Drug Evaluation and Classification Program) (4/4) - ANS -Five
reasons for a standardized procedure: 1. To be able to articulate suspicion of drug
influence. 2. To use DRE's observation and expertise if the subject refuses testing. 3. To
help identify that a drug is psychoactive. 4. To help point laboratory technicians toward a
specific drug category to reduce testing costs. 5. Lastly, a DRE can help to identify if
impairment is being caused by medical problems.
John Hopkins Study (Laboratory Validation Study which was conducted in 1984 at John
Hopkins University in Maryland) 1/2 - ANS -LAPD participants included Dick Studdard,
Jerry Powell, Pat Russell, and Doug Laird. Volunteers each took a "pill" and smoked a
"cigarette." The "pill" contained either: a placebo, Secobarbital, Valium, or
d-amphetamine. The "cigarette" contained either: a placebo or THC.
, John Hopkins Study (Laboratory Validation Study which was conducted in 1984 at John
Hopkins University in Maryland) 2/2 - ANS -The DREs classified 95% of the drug free
subjects as "not impaired." They classified 98.7% of the subjects who received "strong"
doses. They correctly identified the category of drug for 91.7% of the "strong" dose
cases.
Los Angeles Field Validation Study (It was conducted in 1985 and involved 173 subjects
who were arrested on suspicion of driving under the influence of drugs. - ANS -This
study used 28 DREs from LAPD and the L.A. area. For more than 92.5% of the subjects,
the blood test confirmed the presence of at least one drug category "predicted" by the
DREs.
Oregon State v. O'Key (1995) - HGN Test admissible - ANS -Court case explaining that
the HGN test results are scientific in nature. Admissibility is subject to a foundation
showing that the officer who administered the test was properly qualified, that the test
was administered properly, and that the test results were recorded accurately.
Information about the Drug Evaluation and Classification Process (1/2) - ANS -The DEC
is a systematic and standardized method of examining a subject to determine if the
subject is impaired, if impaired, is the impairment a result of injury, illness, or is it drug
related, and if it is drug related, what category (or categories) of drugs is (or are) the
likely cause of the subject's impairment?
Information about the Drug Evaluation and Classification Process (2/2) - ANS -Based on
a variety of observable signs and symptoms that are known to be reliable indicators of
drug impairment: subject's appearance, subject's behavior, and performance of carefully
administered psychophysical tests.
Drug Influence Evaluation Steps - ANS -1. Breath alcohol test
2. The interview of the arresting officer
3. Preliminary examination
4. Examinations of the eyes
5. Divided attention tests
6. Examination of vital signs
7. Dark room examinations
8. Examination of muscle tone
9. Examination for injection sites
10. Subject's statements and other observations
11. Opinion of Evaluator
12. Toxicological examination
