LAPD DRUG RECOGNITION EXPERT (DRE) 2025 | COMPLETE QUESTIONS AND ANSWERS
2025/2026 LATEST UPDATE
What is Sinsemilla? · Spanish word that means without seeds or no seeds
· Unfertilized sativa plant
Name two important metabolites of THC, and describe how they affect the duration and
perception of the effects of Cannabis? · Hydroxy THC (Causes impairment and Euphoria)
· Carboxy THC (Not psychoactive)
Synthetic Cannabinoid products typically include what? · Olive colored herbs
· Combination of herbs
What is the Perse limit for cannabis? There isn't one
What is Hydroxy THC? Causes impairment and Euphoria
What is Carboxy THC? Not psychoactive
What is redound dilation? A period of pupillary constriction followed by a period of pupillary
dilation where the pupil steadily increases in size and does not return to its original constricted
size.
,What is in the smoke of cannabis? · Chemicals
· Hydrogen Cyanide
· Tar
· Arsenic
· Nitrogen
· Lead
· Ammonia
· and a lot more
Which two types of CNS Depressants usually cause pupils to dilate? * Methaqualone
* Some
Ritalin will usually produce what type of affect in the eyes? Mydriasis
Synesthesia is most commonly associated with which type of drug category? Hallucinogen
Can meth cause pupils to dilate? Yes
When examining a drug impaired person who has a high tolerance, the DRE evaluator will most
likely observe what? Clinical signs of impairment
,What was the percentage of suspects who had two or more drugs in their system in the 1985
Los Angeles Field Study? 72%
What was the percentage of all DRE-reported cases that revealed two or more drug categories
detected in the National DRE database? Approximately 36%
There is NOT an antagonistic effect for what type of symptoms? · HGN
· VGN
· LOCReaction to light
How good were the DREs in the Field Validation study? 92.5%
Name six different CNS depressants? · Xanax
· Barbiturates
· Soma
· Valium
· Diazepam
· Choral Hydrate
Name a major analog of PCP? Ketamine
, In the University of Tennessee study, what percent of drivers had drugs in their system other
than ETOH? 40%
What is one requirement before certifying as a DRE? Prepare and submit a CV Resume
What type of Inhalant produces effects that are 5 minutes or less? Nitrous Oxide
What is "Drug Store Heroin" also called? Dilaudid
What type of Inhalant causes the pulse rate to drop? None; all Inhalants elevate pulse rate
What type of CNS stimulant dilates the pupils? Desoxyn
What artery is used to measure blood pressure? Brachial artery
What type of CNS depressant will usually have pupils in the DRE average ranges? Diazepham
Thorazine is what type of CNS depressant? Anti-Psychotic
What is a drug? Any substance that, when taken into the human body, can impair the ability
of the person to operate a vehicle safely.
2025/2026 LATEST UPDATE
What is Sinsemilla? · Spanish word that means without seeds or no seeds
· Unfertilized sativa plant
Name two important metabolites of THC, and describe how they affect the duration and
perception of the effects of Cannabis? · Hydroxy THC (Causes impairment and Euphoria)
· Carboxy THC (Not psychoactive)
Synthetic Cannabinoid products typically include what? · Olive colored herbs
· Combination of herbs
What is the Perse limit for cannabis? There isn't one
What is Hydroxy THC? Causes impairment and Euphoria
What is Carboxy THC? Not psychoactive
What is redound dilation? A period of pupillary constriction followed by a period of pupillary
dilation where the pupil steadily increases in size and does not return to its original constricted
size.
,What is in the smoke of cannabis? · Chemicals
· Hydrogen Cyanide
· Tar
· Arsenic
· Nitrogen
· Lead
· Ammonia
· and a lot more
Which two types of CNS Depressants usually cause pupils to dilate? * Methaqualone
* Some
Ritalin will usually produce what type of affect in the eyes? Mydriasis
Synesthesia is most commonly associated with which type of drug category? Hallucinogen
Can meth cause pupils to dilate? Yes
When examining a drug impaired person who has a high tolerance, the DRE evaluator will most
likely observe what? Clinical signs of impairment
,What was the percentage of suspects who had two or more drugs in their system in the 1985
Los Angeles Field Study? 72%
What was the percentage of all DRE-reported cases that revealed two or more drug categories
detected in the National DRE database? Approximately 36%
There is NOT an antagonistic effect for what type of symptoms? · HGN
· VGN
· LOCReaction to light
How good were the DREs in the Field Validation study? 92.5%
Name six different CNS depressants? · Xanax
· Barbiturates
· Soma
· Valium
· Diazepam
· Choral Hydrate
Name a major analog of PCP? Ketamine
, In the University of Tennessee study, what percent of drivers had drugs in their system other
than ETOH? 40%
What is one requirement before certifying as a DRE? Prepare and submit a CV Resume
What type of Inhalant produces effects that are 5 minutes or less? Nitrous Oxide
What is "Drug Store Heroin" also called? Dilaudid
What type of Inhalant causes the pulse rate to drop? None; all Inhalants elevate pulse rate
What type of CNS stimulant dilates the pupils? Desoxyn
What artery is used to measure blood pressure? Brachial artery
What type of CNS depressant will usually have pupils in the DRE average ranges? Diazepham
Thorazine is what type of CNS depressant? Anti-Psychotic
What is a drug? Any substance that, when taken into the human body, can impair the ability
of the person to operate a vehicle safely.
