Standardized Field Sobriety Test Course
Session 1 - Introduction
Glossary of Terms
A brief state characterized by incoherent excitement, confused speech,
restlessness, and possible hallucinations.
The part of a neuron (nerve cell) that receives a neurotransmitter.
The chemical name for Heroin.
The lowest value of blood pressure. The blood pressure reaches its diastolic
value when the heart is fully expanded, or relaxed (Diastole).
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One of the seven drug categories. Includes drugs that inhibits pain by cutting off
or disassociating the brain's perception of pain. PCP and its analogs are
considered Dissociative Anesthetics.
Concentrating on more than one thing at a time. The four psychophysical tests
used by DREs require the suspect to divide attention.
DIVIDED ATTENTION TEST
A test which requires the subject to concentrate on both mental and physical
tasks at the same time.
An effect that may occur when the body reacts to the presence of a drug by
producing hormones or neurotransmitters to counteract the effects of the drug
Any substance that, when taken into the human body, can impair the ability of the
person to operate a vehicle safely.
The acronym "DWI" means driving while impaired and is synonymous with the
acronym "DUI", driving under the influence or other acronyms used to denote
impaired driving. These terms refer to any and all offenses involving the
operation of vehicles by persons under the influence of alcohol and/or other
DWI DETECTION PROCESS
The entire process of identifying and gathering evidence to determine whether or
not a subject should be arrested for a DWI violation. The DWI detection process
has three phases:
1. Phase One - Vehicle In Motion
2. Phase Two - Personal Contact
3. Phase Three - Pre-arrest Screening
Slurred speech. Difficult, poorly articulated speech.
DYSPNEA et. al.
Shortness of breath.
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An abnormal condition that prevents the affected person from properly estimating
distances linked to muscular movements.
A disorder of mood. Feelings of depression and anguish.
See: "Motor Nerves".
The network of glands that do not have ducts and other structures. They secrete
hormones into the blood stream to affect a number of functions in the body.
Any means by which some alleged fact that has been submitted to investigation
may either be established or disproved. Evidence of a DWI violation may be of
• Physical (or real) evidence: something tangible, visible, or audible.
• Well established facts (judicial notice).
• Demonstrative evidence: demonstrations performed in the courtroom.
• Written matter or documentation.
A person skilled in some art, trade, science or profession, having knowledge of
matters not within knowledge of persons of average education, learning and
experience, may assist a jury in arriving at a verdict by expressing an opinion on
a state of facts shown by the evidence and based upon his or her special
knowledge. (NOTE: Only the court can determine whether a witness is qualified
to testify as an expert.)