October 27, 2015

Introduction to Drugged Driving DWI Detection and Standardized Field Sobriety Testing • Alcohol • Barbiturates (Secobarbital) • Non barbiturates (GHB/Soma) • Anti-Anxiety Tranquilizers(Valium/Xanax) • Anti-Depressants (Prozac/Elavil) • Muscle relaxants Central Nervous System (CNS) Depressants

Session Overview – Introduction to Drugged Driving
DWI Detection and Standardized Field Sobriety Testing
Alcohol
Barbiturates (Secobarbital)
Non barbiturates (GHB/Soma)
Anti-Anxiety Tranquilizers(Valium/Xanax)
Anti-Depressants (Prozac/Elavil)
Muscle relaxants
Central Nervous System
(CNS) Depressants
1-19
Central Nervous System (CNS) Depressants
CNS Depressants slow down the operations of the brain, and usually depress the
heartbeat, respiration, and many other processes controlled by the brain.
The most familiar CNS Depressant is alcohol.
Other CNS Depressants include:
• Barbiturates (such as Secobarbital (Seconal), and Pentobarbital (Luminal))
• Non-Barbiturates (GHB-gamma-hydroxybutyrate and Soma)
• Anti-Anxiety Tranquilizers (Such as Valium, Librium, Xanax, and Rohpynol)
• Anti-Depressants (such as Prozac and Elavil)
• Muscle relaxants and many other drugs (Soma)
CNS Depressants usually are taken orally, in the form of pills, capsules, liquids, etc.
In general, people under the influence of any CNS Depressant look and act like people
under the influence of alcohol.
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HS 178 R5/13 13 of 29
Session Overview – Introduction to Drugged Driving
DWI Detection and Standardized Field Sobriety Testing
Indicators of
CNS Depressant Influence
1-20
General indicators of CNS Depressant influence are:
• “Drunken” behavior and appearance
• Uncoordinated
• Drowsy
• Sluggish
• Disoriented
• Thick, slurred speech
Eye indicators of CNS Depressant influence are:
• Horizontal gaze nystagmus usually will be present
• Vertical nystagmus may be present (with high doses)
• Pupil size usually will not be effected, except that Methaqualone and Soma may
cause pupil dilation
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HS 178 R5/13 14 of 29
Session Overview – Introduction to Drugged Driving
DWI Detection and Standardized Field Sobriety Testing
Central Nervous
System (CNS) Stimulants
1-21
Cocaine
Amphetamines
Methamphetamine
Central Nervous System Stimulants
Central Nervous System Stimulants accelerate the heart rate, respiration and many
other processes of the body.
The two most widely abused kinds of CNS Stimulants are cocaine and
methamphetamines.
Cocaine is made from the leaves of the coca plant.
Methamphetamines are chemically produced (manufactured) drugs.
Cocaine abusers may take the drug:
• By “snorting”
• By smoking (freebase, or “Crack”)
• By injection
• Orally
Abusers of amphetamines may take their drugs:
• By injection
• Orally
• By “snorting”
• Smoked (i.e., “ice”)
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HS 178 R5/13 15 of 29
Session Overview – Introduction to Drugged Driving
DWI Detection and Standardized Field Sobriety Testing
People under the influence of CNS
Stimulants tend to be hyperactive,
indicated by nervousness, extreme
talkativeness and an inability to sit still
They also are usually unable to
concentrate, or to think clearly for any
length of time
Indicators of
CNS Stimulant Influence
1-22
General indicators of CNS Stimulant influence:
People under the influence of CNS Stimulants tend to be hyperactive, indicated by
nervousness, extreme talkativeness and an inability to sit still. They also are usually
unable to concentrate, or to think clearly for any length of time.
• Restlessness
• Talkative
• Excitation
• Euphoria
• Exaggerated reflexes
• Loss of appetite
• Anxiety
• Grinding teeth (bruxism)
• Redness to nasal area (if “snorting”)
• Body tremors
Eye indicators of CNS Stimulant Influence:
• Neither horizontal nor vertical nystagmus will be observed
• The pupils generally will be dilated.
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Source: DWI Detection and
Standardized Field
Sobriety Testing
March 2013 Edition
HS 178 R5/13 16 of 29

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