Module 6 (weeks 11 and 12) Flashcards

(35 cards)

1
Q

3 types of stimulants

A

amphetamine, methamphetamine, cocaine

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2
Q

2 types of depressant

A

barbiturates, alcohol

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3
Q

One type of narcotic and its other forms

A

opium

other forms: morphine and codeine

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4
Q

4 types of hallucinogens

A

LSD, marijuana, MDMA, PCP

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5
Q

What is the active ingredient in marijuana?

A

THC (in resin)

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6
Q

What does an antagonist do to a agonist?

A

oppose its action

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7
Q

What is drug synergism?

A

drugs working together to magnify or create new effects

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8
Q

What is the cut-off level?

A

specific for each drug

avoid possibility that noise will be mistaken for a signal

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9
Q

When was the Controlled Substances Act made?

A

1984

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10
Q

What are the three steps in drug analysis?

A

detection
quantification
interpretation

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11
Q

What does chromatography do?

A

separates mixture into its compounds

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12
Q

What does mass spectrometry do?

A

measurement and identification by characteristics of fragmentation of each compound

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13
Q

4 steps in DVI?

A

fingerprints
pathology
dentist
data responsible/quality

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14
Q

The Duquenois-Levine test is a screening test for which drug?

A

marijuana

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15
Q

The Scott color test is a screening test for which drug?

A

cocaine

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16
Q

When identifying victims of disasters, such as plane and train crashes, approximately 93 percent of identifications are made on the basis of which characteristic?

A

dental records

17
Q

What are the four levels of court in SA from lowest to highest?

A

Magistrate’s
district
supreme
high

18
Q

Who determines an expert witness?

19
Q

What is court-approved information called?

20
Q

How many countries belong to Interpol? What is their slogan?

A

190

“connecting police for a safer world”

21
Q

When was the AFP founded?

22
Q

What is Locard’s exchange principle?

A

every contact leaves a trace

23
Q

What type of paint examination is most discriminate in the first instance?

A

infrared microscopy

24
Q

How is glass differentiated?

A

refractive index

25
What types of fibres are of low evidentiary value?
white cotton and blue denim
26
A control sample which is known to be free of the item or substance being tested is referred to as:
blank sample
27
A scalp hair specimen with significant root sheath material would indicate that the hair originated from which phase of growth?
anagen
28
A substratum specimen serves what purpose in the physical evidence examination process?
comparison sample
29
Hair cuttings can contain ________ DNA
mitochondrial
30
Shed scalp hair samples generally have little to no root sheath material. (T/F)
true
31
The examination of evidence requires comparison with a “substrate control” to ensure the evidentiary value of the crime-scene evidence. (T/F)
true
32
The fluid that is used to decolorize ink on a document is called:
ink eradicator
33
The technique best suited for distinguishing among most paint formulations is:
pyrolysis gas chromatography
34
Uncontaminated surface material close to an area where physical evidence has been deposited is a:
substrate control
35
What is studied in forensic palynology?
pollens and spores