Drug Evaluation and Classification. 2009 NHTSA National Roadside Survey 2.2% of the drivers impaired...
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Drug Evaluation
and Classificatio
n
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2009 NHTSA National Roadside
Survey 2.2% of the drivers impaired by alcohol
16.3% nighttime weekend drivers
impaired by drugs
8.6% Marijuana
3.9% Cocaine
3.9% OTC and Prescription
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How do we Combat Drugged
Driving?
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NHTSA Drugged Driving Programs
Standardized Field Sobriety Tests (S.F.S.T)
Advanced Roadside Impaired Driving Enforcement (A.R.I.D.E.)
Drug Recognition Expert (D.R.E.)
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Standardized Field Sobriety Tests
Utilizes the standardized three field sobriety tests
One Leg Stand
Walk and Turn
Horizontal gaze Nystagmus
Basic Foundation for ARIDE and DRE
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Advanced Roadside Impaired Driving Enforcement
Gives officers / prosecutors additional information regarding drug impaired driving
Teaches officers / prosecutors the signs and symptoms of the seven drug categories
Provides officers with a S.F.S.T. refresher
Bridging the Gap Between DRE & SFST
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Drug Recognition Expert
Highly trained officers / prosecutors able to detect drug impaired subjects
Utilizes S.F.S.T ‘s to test impaired subjects
Utilizes a Standardized and Systematic twelve step method to make determination.
Started in 1970’s by LAPD
48 U.S. states and several countries now have DRE Programs.
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Ghb stop
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D.R.E. Twelve Step
ProcessSTANDARDIZED
&SYSTEMATIC
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Breath Alcohol Test
STEP ONE
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Does the BrAC Result match the Impairment?
0.08 or above
Don’t Call D.R.E.
0.08 or below with minimal impairment
Don’t Call D.R.E.
0.07 or below with high impairment
Call D.R.E
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Subject’s Behavior
Appearance
Driving
STEP TWO
Statements made regarding drug use and if the arresting officer(s)
found any other relevant evidence consistent with drug use.
Interview of the Arresting Officer
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Preliminary Examination and First Pulse
STEP THREE The DRE conducts a preliminary
examination, to ascertain whether the subject may be suffering from
an injury or other condition unrelated to drugs.
Questionshealth issues and recent ingestion
of food, alcohol and drugs, including prescribed medications.
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Preliminary Examination
Documents subject’s attitude, coordination, speech, breath and face.
Determines if the subject’s pupils are of equal size and if the subject’s eyes can follow a moving
stimulus and track equally.
Onset of Nystagmus, estimation of Pupils
Checks pulse for the first of three times.
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Horizontal Gaze Nystagmus
Vertical Gaze Nystagmus
Lack of Convergence
D.I.D. Drugs / D.I.D.-C. Drugs / VGN in high doses
STEP FOUREye Examination
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Romberg Balance
Walk and Turn
One Leg Stand
Finger to Nose test
STEP FIVEDivided Attention Psychophysical Tests
The DRE administers four psychophysical tests:
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Blood pressure
Body Temperature
SECOND pulse.
Some drug categories may elevate the vital signs. Others may lower them.
STEP SIXVital Signs and Second Pulse
The document the drug is psycho active the DRE takes vital signs
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Dark Room Examinations
The DRE estimates the subject’s pupil sizes under three different
lighting conditions with a measuring device called a
pupilometer
STEP SEVEN
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The Eyes Are The Window
to the Soul
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DILATED PUPILS
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CONSTRICTED PUPILS
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MOUTH AND NASAL CHECKS
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Examination for Muscle Tone The DRE examines the subject’s skeletal muscle tone.
Certain categories of drugs may cause the muscles to become rigid. Other categories may cause the
muscles to become very loose and flaccid.
STEP EIGHT
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Check for Injection Sites and Third Pulse
Examination for injection sites
THIRD pulse
STEP NINE
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Subject’s Statements and Other Observations
STEP TEN
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Analysis and Opinions of the Evaluator
Based on the totality of the evaluation, the DRE forms an opinion as to whether or not the
subject is impaired.
STEP ELEVEN
The DRE bases these conclusions on his training and experience and the DRE Drug Symptomatology Matrix. While DREs use the drug matrix, they also rely heavily on their general training
and experience.
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Blood
Urine
Other
STEP TWELVE
Toxicological Examination
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D.R.E.’s working definition of
”DRUG”
Any substance which, when taken into the human body, can impair the ability of the person
to operate a vehicle safely.
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Central Nervous System
DepressantsAlcohol
Ambien / Ativan
Valium / Xanax
GHB - Gama Hydroxy Butyrate
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General Indicators of CNS Depressants
Drunken Behavior and AppearanceUncoordinated Drowsy Sluggish DisorientedThick, Slurred Speech
Pupils Generally Normal HGN Present VGN Present LOC Present
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Central Nervous System Stimulants
Cocaine
Amphetamines
Others
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D-MethamphetamineLong Term Effects
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General Indicators of CNS Stimulants
Restlessness, Excitation, Talkative
Euphoria Exaggerated Reflexes Anxiety Grinding Teeth
Redness to Nasal Area Runny Nose
Body Tremors Pupils Dilated HGN Not Present VGN Not Present LOC Not Present
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HallucinogensSynthetic
LSDMDMAMDA
Naturally occurringPeyoteBufotaninePsylociben
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Synesthesia
A Transposition of Senses
“Seeing Sounds”“Hearing Colors”
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General Indicators of Hallucinogens
Hallucinations Dazed Appearance
Disoriented, UncoordinatedBody Tremors Perspiring
Paranoia Difficulty in Speech Nausea Piloerection (goose
bumps)Pupils Visibly Dilated
HGN Not Present VGN Not Present LOC Not Present
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Dissociative Anesthetics
PCP
Special “K”
DXM
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General Indicators of Dissociative Anestics
Warm to the Touch PerspiringBlank Stare Drooling
Repetitive Speech Muscle Rigidity
Incomplete Verbal Responses Confused Pupils Normal
Possibly Violent and Combative HGN Present VGN Present LOC Present
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Narcotic AnalgesicsNaturally occurring
MorphineHeroinCodeineVicodinThebaineOxycontin
Synthetic
Demoral
Fentanyl
Methadone
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General Indicators of Narcotic Analgesics
“On the Nod” Droopy EyelidsDepressed Reflexes Dry Mouth
Facial Itching Low, Raspy Speech
Possible Puncture Marks, “Tracks” Constricted Pupils
HGN Not Present VGN Not Present LOC Not Present
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Inhalants
Aerosols
Volatile
Solvents
Anesthetic Gases
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General Indicators of Inhalants
Disorientation Slurred SpeechConfusion Possible Nausea
Pupils NormalResidue of Substance on
Face, Hands, Clothing HGN Present VGN Present LOC Present
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Cannabis
Marijuana
Hashish
Hash Oil
Marinol
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General Indicators of Cannabis
Body Tremors Odor of Marijuana Disoriented Relaxed Inhibitions Difficulty in Dividing Attention
Dilated Pupils Very bloodshot eyes, with pronounced
veins in the eyeballs HGN Not Present VGN Not Present
LOC Present
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? ? ? QUESTIONS ? ? ?
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Contact InformationDrug Recognition Expert Instructor
Sgt. Perry CurtisMichigan State Police
TX: 517-241-0562Email: [email protected]