DRE TEST QUESTIONS WITH CORRECT
ANSWERS 2025
1. What does the term "drug" mean, as it is used in this course? - CORRECT ANSWER -
"Any substance that, when taken into the human body, can impair the ability of the person to
operate a vehicle safely."
What are the seven categories of drugs? To which category does alcohol belong? To which cate
gory
does Cocaine belong? - CORRECT ANSWER -
CNS Depressants, CNS Stimulants, Hallucinogens, Dissociative Anesthetics, Narcotic Analgesics,
Inhalants, Cannabis
What does "polydrug use" mean? - CORRECT ANSWER -Ingesting two or more different drugs
What is a Speedball? - CORRECT ANSWER -cocaine and heroin
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. - CORRECT ANSWER -22%
State four reasons why it is important not to rely simply on a chemical test to establish a subje
ct's
drug impairment. - CORRECT ANSWER -
Develop articulable facts of impairment, refusal of chemical test, chemical test only show inges
tion (not psychoactive and impairing), expensive to test and require a large sample, rule out m
edical impairment
What categories of drugs were included in the Johns Hopkins Laboratory Study? -
CORRECT ANSWER -CNS Depressant, CNS Stimulant, Cannabis
, In what percentage of cases in the Los Angeles Field Validation Study did blood tests confirm th
e
DREs' opinion PCP was present? - CORRECT ANSWER -92%
What percentage of blood tests in the LAPD Field Validation Study confirmed the presence of a
t
least one drug category predicted by the DRE's? - CORRECT ANSWER -92.5%
What was the landmark State Supreme Court case that upheld the use of HGN as evidence of
impairment? - CORRECT ANSWER -Arizona v. Blake
What do we call the traditional standard for admissibility of scientific evidence, set by the U.S.
Supreme Court? - CORRECT ANSWER -Frye Standard
Give three important reasons for conducting DEC evaluations in a standardized fashion. -
CORRECT ANSWER -• Standardization helps to ensure no mistakes are made
• No steps are omitted
• No extraneous or unreliable "indicators" are included
• Standardization helps to promote professionalism among Drug Recognition Experts (DREs)
• Standardization helps to secure acceptance in court
2. What are the twelve components of the drug evaluation process? - CORRECT ANSWER -
BREATH TEST, INTERVIEW OFFICER, PRELIMINARY INTERVIEW (PULSE), EYE EXAM,
DIVIDED ATTENTION TEST, VITALS (PULSE 2), DARK ROOM, MUSCLE TONE, INJECTION
SITES (PULSE 3), SUSPECT STATEMENTS, OPINION, TOXICOLOGY
ANSWERS 2025
1. What does the term "drug" mean, as it is used in this course? - CORRECT ANSWER -
"Any substance that, when taken into the human body, can impair the ability of the person to
operate a vehicle safely."
What are the seven categories of drugs? To which category does alcohol belong? To which cate
gory
does Cocaine belong? - CORRECT ANSWER -
CNS Depressants, CNS Stimulants, Hallucinogens, Dissociative Anesthetics, Narcotic Analgesics,
Inhalants, Cannabis
What does "polydrug use" mean? - CORRECT ANSWER -Ingesting two or more different drugs
What is a Speedball? - CORRECT ANSWER -cocaine and heroin
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. - CORRECT ANSWER -22%
State four reasons why it is important not to rely simply on a chemical test to establish a subje
ct's
drug impairment. - CORRECT ANSWER -
Develop articulable facts of impairment, refusal of chemical test, chemical test only show inges
tion (not psychoactive and impairing), expensive to test and require a large sample, rule out m
edical impairment
What categories of drugs were included in the Johns Hopkins Laboratory Study? -
CORRECT ANSWER -CNS Depressant, CNS Stimulant, Cannabis
, In what percentage of cases in the Los Angeles Field Validation Study did blood tests confirm th
e
DREs' opinion PCP was present? - CORRECT ANSWER -92%
What percentage of blood tests in the LAPD Field Validation Study confirmed the presence of a
t
least one drug category predicted by the DRE's? - CORRECT ANSWER -92.5%
What was the landmark State Supreme Court case that upheld the use of HGN as evidence of
impairment? - CORRECT ANSWER -Arizona v. Blake
What do we call the traditional standard for admissibility of scientific evidence, set by the U.S.
Supreme Court? - CORRECT ANSWER -Frye Standard
Give three important reasons for conducting DEC evaluations in a standardized fashion. -
CORRECT ANSWER -• Standardization helps to ensure no mistakes are made
• No steps are omitted
• No extraneous or unreliable "indicators" are included
• Standardization helps to promote professionalism among Drug Recognition Experts (DREs)
• Standardization helps to secure acceptance in court
2. What are the twelve components of the drug evaluation process? - CORRECT ANSWER -
BREATH TEST, INTERVIEW OFFICER, PRELIMINARY INTERVIEW (PULSE), EYE EXAM,
DIVIDED ATTENTION TEST, VITALS (PULSE 2), DARK ROOM, MUSCLE TONE, INJECTION
SITES (PULSE 3), SUSPECT STATEMENTS, OPINION, TOXICOLOGY
