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Trace Evidence

Last updated 3 months ago

25 questions

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Question 1

1.

Which of the following best characterizes fibers, such as nylon, rayon, and polyester?

Synthetic Fiber

Fibers

Artificial Fiber

Nylon Fibers

Question 2

2.

Who discovered the exchange principle that explain the inevitable transfer of trace evidence materials when two objects or individuals come in to contact?

Locard

Sir Robert Peel

August Vollmer

Henry Lee

Question 3

3.

Which term describes minute, often microscopic forms of evidence that can be collected scientifically analyzed to reconstruct events at a crime scene, either physical or circumstantial?

Direct Evidence

Circumstantial Evidence

Trace Evidence

Real Evidence

Question 4

4.

Which term best describes a material or device capable of producing a rapid, self propagating release of energy resulting in an explosion?

Destruction

Explosives

Detonation

Binary Explosives

Question 5

5.

Which term refers to the microscopic particulate material expelled during the discharge of a firearm, often deposited on the shooter's hands, clothing, or nearby surfaces?

Residue

Firearm Discharge Residue

Tiny Particles

Gunshot Residue

Question 6

6.

Which type of liquid applied coating dries into a thin, pigmented film and can be forensically analyzed to compare layer structure, color and chemical composition?

Finish

Paint

Varnish

Primer

Question 7

7.

Which category of forensics material includes skin cells, blood, saliva, pollen, and other microscopic matter?

DNA

Genetics

Biological

Body

Question 8

8.

Which is a transparent, non crystalline material can be examined to determine its source and fracture characteristics, including break patterns?

Plastic

Glass

Fiberglass

Mirrors

Question 9

9.

Which forensic term refers to the distinctive impressions, striations, or damage patterns produced when a tool such as a hammer used on a door or a screwdriver manipulating a lock.

Striations

Scratches

Grooves

Toolmarks

Question 10

10.

Which term best describes an inorganic material produced through the weathering and breakdown of rock and material sources that can match evidence at a crime scene to a particular type of region

Sand

Dirt

Gravel

Mud

Question 11

11.

Which type of microscope has more than one lens and is designed to examine trace evidence?

Compound microscope

Scanning Electron Microscope

Electron microscope

Double electron microscope

Question 12

12.

Which type of microscope uses a focused beam of electrons rather than light to generate a highly magnified image with strong surface detail and an apparent three-dimensional topography to enhance trace evidence?

Compound microscope

Simple microscope

Scanning electron microscope

Optical Microscope

Question 13

13.

Which analytical laboratory technique separates a complex into its individual chemical components based on differences in of molecular properties to identify trace evidence such as explosives or accelerant residue in an arson investigation?

Chromatography

Electrons

Color graph

Forensic testing

Question 14

14.

Which structural, fibrous protein serves as the primary building block of hair, the outer layer of skin, and nails?

Hair root

Hair follicle

Cuticle

Keratin

Question 15

15.

Which anatomical structure is defined as the narrow, tube like invagination of the skin that houses the hair root and bulb and determines whether a hair was naturally shed or forcibly removed?

Hair root

Cuticle

Hair follicle

Keratin

Question 16

16.

Which term refers to the portion of the hair located within the follicle beneath the skin's surface, and is likely to hold nuclear DNA evidence

Hair root

Hair follicle

Cuticle

Keratin

Question 17

17.

Which anatomical layer of hair forms the outermost protective covering mode of overlapping scales; may vary in types of scale, thickness, and pigmentation?

Hair follicle

Hair root

Cuticle

Keratin

Question 18

18.

Which hair structure is the protein dense layer surrounding the medulla that contains much of the hair's pigment; one of the most informative features for identifying similarities and differences among human hairs?

Cortex

Medulla

Hair root

Hair follicle

Question 19

19.

Which anatomical feature of hair is the central core that may be continuous, fragmented, or entirely absent in some samples & varies depending on the species

Hair root

Cortex

Medulla

Hair follicle

Question 20

20.

Which term best describes any material item or observable trace that can demonstrate that a crime occurred and/or establish an association between the offense, the victim, the scene, and a potential perpetrator?

Physical evidence

Circumstantial evidence

Direct evidence

Indirect evidence

Question 21

21.

Which category of evidence relies on inference rather than firsthand observation; trace evidence present at a crime scene while still falling short of constituting direct proof of guilt on its own?

Physical evidence

Circumstantial evidence

Direct evidence

Indirect evidence

Question 22

22.

Which term best describes a naturally occurring fiber obtained by harvesting material from animal, plant, or mineral sources?

Synthetic fiber

Plant fiber

Natural fiber

Mineral fiber

Question 23

23.

How does Locard's exchange principle explain the bidirectional transfer of trace materials between a suspect and a victim, such as hair and fiber, and microscopic particulate matter?

Cross-transfer

Transfer

Discovery

Physical evidence

Question 24

24.

Which plant derived fiber remains the most widely used in modern textiles today?

Wool

Dye

Cotton

Nylon

Question 25

25.

Which animal derived fiber remains the most widely used in modern textiles today?

Dye

Cotton

Nylon

Wool