Module 6 (weeks 11 and 12) Flashcards Preview

Intro to Forensics > Module 6 (weeks 11 and 12) > Flashcards

Flashcards in Module 6 (weeks 11 and 12) Deck (35):
1

3 types of stimulants

amphetamine, methamphetamine, cocaine

2

2 types of depressant

barbiturates, alcohol

3

One type of narcotic and its other forms

opium
other forms: morphine and codeine

4

4 types of hallucinogens

LSD, marijuana, MDMA, PCP

5

What is the active ingredient in marijuana?

THC (in resin)

6

What does an antagonist do to a agonist?

oppose its action

7

What is drug synergism?

drugs working together to magnify or create new effects

8

What is the cut-off level?

specific for each drug
avoid possibility that noise will be mistaken for a signal

9

When was the Controlled Substances Act made?

1984

10

What are the three steps in drug analysis?

detection
quantification
interpretation

11

What does chromatography do?

separates mixture into its compounds

12

What does mass spectrometry do?

measurement and identification by characteristics of fragmentation of each compound

13

4 steps in DVI?

fingerprints
pathology
dentist
data responsible/quality

14

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

marijuana

15

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

cocaine

16

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

dental records

17

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

Magistrate's
district
supreme
high

18

Who determines an expert witness?

judge

19

What is court-approved information called?

evidence

20

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

190
"connecting police for a safer world"

21

When was the AFP founded?

1979

22

What is Locard's exchange principle?

every contact leaves a trace

23

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

infrared microscopy

24

How is glass differentiated?

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