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Forensic Science Unit 1 Practice

Total questions: 92

Worksheet time: 3hrs 7mins

Name
Class
Date
1.

Dirt, pollen, hair, skin cells, and carpet fibers are all ______.

a)

DNA

b)

forensic science

c)

tool marks

d)

trace evidence

2.

Which form of evidence can be associated with a group?

a)

Class

b)

Inidiviudal

c)

Testimonial

d)

Transient

3.

This type of evidence is based on suggestion rather than observation or facts.

a)

Transient

b)

Individual

c)

Testimonial

d)

Circumstantial

4.

This evidence can be traced to a single source.

a)

Transient

b)

Individual

c)

Class

d)

Circumstantial

5.

What type of evidence is shoe size?

a)

Class

b)

Individual

6.

Which evidence is considered to be more reliable?

a)

Testimonial

b)

Physical

7.

What does the Locard Exchange Principle imply?

a)

fingerprints can help identify people

b)

wherever there is contact, something is left behind (evidence)

c)

for every action there is an equal and opposite reaction

d)

there is always some type of DNA left at a crime scene

8.

(indirect evidence) evidence used to imply a fact but not prove it directly is known as _______________ evidence.

a)

Direct

b)

Circumstantial

c)

Physical

d)

Biological

9.

Evidence that comes directly from a person or animal (body parts, fluids, hair, skin, blood, etc). is known as _______________ evidence.

a)

Direct

b)

Circumstantial

c)

Physical

d)

Biological

10.

A fingerprint could be an example of

a)

common evidence

b)

biological evidence

c)

individual evidence

d)

class evidence

11.

What is the first "S" in the 7 S's of Crime Scene Investigation?

a)

Search for Evidence

b)

Scan the scene

c)

Separate the Witnesses

d)

Secure the scene

12.

Finding the boundaries of a crime scene and controlling who goes into and out of the scene.

a)

secure and protect the scene

b)

initiate preliminary survey

c)

prepare a narrative of the scene

d)

crime scene

13.

Typically they are the first to arrive at a crime scene and they secure the scene

a)

detectives

b)

specialists

c)

district attorney

d)

police officers

14.

The first officer arriving at a crime scene, after providing or obtaining medical assistance for the injured and making an arrest of suspects (if possible), should immediately:

a)

photograph the scene.

b)

search for evidence.

c)

make a rough sketch of the scene.

d)

secure the scene.

15.

The crime scene notes must accurately record:

a)

the tasks assigned each investigator.

b)

personnel arrivals and departures from the scene.

c)

descriptions of evidence present at the crime scene.

d)

all the above

16.
The ability to establish the exact whereabouts of an item of evidence and under whose control it was from its collection at the crime scene to its presentation in the courtroom and everywhere in between is called
a)
chain of command
b)
record of evidence
c)
chain of custody
17.
While taking pictures at the crime scene, it is important to:
a)
Take pictures from far away.  Getting too close might contaminate the crime scene.
b)
Only observe the pictures in black and white.
c)
Use a ruler to provide evidence of scale (size).
d)
All of these are true.
18.
when securing a crime scene the two most important factors are to
a)
scan the scene, separate the witnesses
b)
safety of individuals, separate the witnesses
c)
see the scene, preserving evidence
d)
safety of individual, preserving evidence
19.

Maintaining a ______ _____ _______ log is essential to present credible evidence in court.

a)

Turning off Filters

b)

Chain of Command

c)

Chain of Custody

d)

Evidence ID Forms

20.

Fibers are an excellent source of trace evidence because

a)

they are easily transferred from a victim to a suspect

b)

they are often overlooked by a suspect

c)

they can be easily collected and stored

d)

all of these choices

21.

Before evidence is removed from the crime scene it must be...

a)

carefully measured

b)

carefully recorded

c)

both of these

22.

Which of the following is not a form of documentation at a crime scene?

a)

notes

b)

photography

c)

collecting evidence

d)

sketches

23.

Chain of custody must be maintained

a)

so that the evidence does not have to be examined again.

b)

or the evidence may not be admitted into court

c)

only by the first officer on the scene

d)

only by the forensic scientist who examines the evidence

e)

all of these are true

24.

During what crime scene investigation step is the crime scene isolated and taped off?

a)

Scan the scene

b)

Secure the scene

c)

Secure and collect

d)

Search the scene

25.

How can collusion be prevented at a crime scene?

a)

By determining if the scene is a primary or secondary crime scene

b)

By making sure all evidence is properly packaged and labeled

c)

By separating witnesses to prevent them from creating a story

d)

By having the photography unit take photos of the overall area

26.

Correct collection of evidence requires which of the following?

a)

documenting the location where the evidence was found

b)

correct packaging of evidence

c)

maintaining proper chain of custody

d)

all of the above

27.

Crime scene sketches provide _____________ not present in photographs, video evidence, etc

a)

Positioning of evidence

b)

Condition of evidence

c)

Close-ups and details

d)

Distances and dimensions

28.

When you sketch the crime scene, you should include: (check all that apply)

a)

your name

b)

the date and time

c)

the location

d)

a list of the evidence found

29.

Crime scene documentation is accomplished through _________ and ___________.

a)

sketching, photography

b)

sketching, witness interviews

c)

witness interviews, photography

d)

peripheral analysis, FTIR data

30.

What happens to the evidence if the photographic protocols are not followed correctly?

a)

Nothing

b)

the evidence can be considered inadmissible in court

c)

the defendant automatically is convicted

d)

the defendant is automatically set free

31.

The purpose of overview photos is

a)

to show the very small details of a crime scene

b)

to show all pieces of evidence in the crime scene

c)

to show measurements

d)

to show exact motive

32.

When measuring placement of evidence in a crime scene,

a)

measure from the closest piece of evidence

b)

measure from permanent structures

c)

measure from any angle to the nearest wall

d)

measure using inches, not centimeters

33.

Which should NOT be included in any forensic photos?

a)

people involved in the investigation

b)

time and date

c)

evidence markers

d)

scales

34.
Which of the following is not included in a crime scene sketch
a)
Weather
b)
Reference points for placement of evidence
c)
Scale
d)
Distance measurements
35.
Blood evidence is packaged by _____.
a)
air drying at room temperature and refrigerating or freezing as soon as possible.
b)
packing in an air tight container.
c)
packing in a plastic bag.
d)
packing in a glass container.
36.
Crime scene procedure starts with _______ and ends with _________.
a)
documenting; securing the scene
b)
securing the scene; processing
c)
examining; collecting evidence
d)
collecting evidence; securing the scene
37.
Physical evidence found in small, measurable amounts
a)
trace evidence
b)
testimonial evidence
c)
primary evidence
d)
secondary evidence 
38.
Person who determines the preliminary cause of death at the crime scene and conducts an autopsy
a)
detective
b)
CSI unit 
c)
medical examiner
d)
attorney
39.
Which of the following is the first priority of the first officer arriving at a crime scene?
a)
Excluding all unauthorized personnel
b)
Getting medical assistance for injured individuals
c)
Securing the boundaries
d)
Isolating the area
40.
What is the first step in processing a crime scene?
a)
Photography
b)
Rough sketch
c)
Finished sketch
d)
Securing the perimeter
41.
Hairs are an example of trace evidence.
a)
True
b)
False
42.

Which type of search pattern is shown in this image?

a)

Spiral seach

b)

Line search

c)

Grid search

d)

Zone search

43.

Which step involves putting the witnesses in separate rooms?

a)

Step 1

b)

Step 2

c)

Step 3

d)

Step 4

44.

A ____________ search is simply two parallel searches, offset by 90 degrees, performed one after the other.

a)

Parallel

b)

Grid

c)

Zone

d)

Inward spiral

e)

Outward spiral

45.

A ____________ search is when the CSI starts at the perimeter of the crime scene and works their way towards the center

a)

Quadrant

b)

Grid

c)

Zone

d)

Spiral

46.

What is the correct order of steps to process a crime scene?

1 - sketching the scene

2 - separating the witnesses

3 - securing evidence

4 - scanning the scene

a)

1,2,3,4

b)

2,4,1,3

c)

3,1,2,4

d)

2,1,3,4

47.

All of the following are search patterns EXCEPT for

a)

quadrant

b)

grid

c)

linear

d)

free form

48.

Which is NOT typically part of a crime scene sketch?

a)

Scale

b)

North arrow

c)

Color

d)

Labels for evidence

49.

Which is NOT one of the Seven S's of crime scene investigation?

a)

See the Scene

b)

Sketch the Scene

c)

Search for Evidence

d)

Sign Off the Evidence

50.

Which is NOT a method to search for evidence?

a)

Spiral

b)

Grid

c)

Zone

d)

Lattice

51.

The best way of performing a search is by covering the area in _______________ .

a)

a systematic way.

b)

a cross linear way

c)

with many people using different techniques.

d)

various ways.

52.

The purpose of proper packaging is to prevent all of the following except...

a)

Breaking

b)

Spoiling

c)

Loss

d)

Contamination

e)

All are reasons to properly package

53.

All are considered fixed points except...

a)

Door frame

b)

wall

c)

desk

d)

window frame

54.

Typically, rough sketches are NOT which of the following

a)

Drawn to scale

b)

Drawn with pencil

c)

Drawn at the crime scene

d)

Drawn after photos are taken

55.

A folded paper used to hold trace evidence

a)

envelope

b)

baggie

c)

bindle

d)

chain of custody

56.

Which of the following is not a crime-scene search pattern?

a)

grid

b)

triangulation

c)

linear

d)

spiral

e)

quadrant

57.

A crime-scene sketch should include all of the following except

a)

a scale of distance

b)

date and location of the crime scene

c)

a north heading on the diagram

d)

the type of search pattern used to collect the evidence

58.

What is the purpose of a rough sketch in crime scene sketching?

a)

To outline the crime scene

b)

To create a legend

c)

To present in the courtroom

d)

To draw to scale

59.
Type of cuticle:
a)
imbricate
b)
spinous
c)
coronal
d)
continuous
60.
The central core of the hair is called the...?
a)
Medulla
b)
Cuticle
c)
Cortex
d)
Shaft
61.
The hair follicle is dormant and hairs are easily lost during which stage of the hair life cycle?
a)
Anagen
b)
Telogen
c)
Catagen
d)
Metagen
62.
Hair is helpful in solving old crimes because…
a)
hair on a suspect never changes
b)
hair always contains DNA evidence
c)
hair takes little room to store in evidence closets
d)
hair does not easily decompose
63.
The tough clear outside covering of a hair shaft is
a)
cuticle
b)
cortex
c)
medulla
d)
polymer
64.
The middle layer of a hair shaft that contains pigment
a)
the cortex
b)
the medulla
c)
the cuticle
d)
the polymer
65.
What type of evidence is hair without the follicular tag considered?
a)
Individual
b)
Class
66.
Type of cuticle
a)
coronal
b)
spinous
c)
imbricate
d)
fragmented
67.
Type of cuticle
a)
coronal
b)
spinous
c)
imbricate
d)
solid
68.

Why is hair considered a valuable source of evidence in forensic science?

a)

It is easy to find at a crime scene.

b)

It can provide information about the criminal's diet.

c)

It can help determine if the hair is human or nonhuman.

d)

It can be used to identify the criminal's fingerprints.

69.

What can the structure of hair help forensic scientists determine?

a)

The age of the person.

b)

The gender of the person.

c)

If the hair is human or nonhuman.

d)

The height of the person.

70.

What type of evidence do hairs with an attached follicle or root provide?

a)

Class evidence

b)

Individual evidence

c)

Circumstantial evidence

d)

Trace evidence

71.

What can hairs without a root or follicle reveal?

a)

Individual identity

b)

Family relationships

c)

Blood type

d)

Age of the individual

72.

What is one limitation of using hair as evidence in forensic investigations?

a)

It can determine the exact time a hair was left at a crime scene.

b)

It can always identify the person who left the hair.

c)

It may be a secondary transfer.

d)

It can be used to determine blood type.

73.

Cuticle Pattern

a)

Imbricate

b)

Coronal

c)

Spinous

74.

Cuticle Pattern

a)

Imbricate

b)

Coronal

c)

Spinous

75.

Cuticle Pattern

a)

Imbricate

b)

Coronal

c)

Spinous

76.

Cuticle Pattern

a)

Imbricate

b)

Coronal

c)

Spinous

77.

A hair without the -------- and its ------- --- cannot provide individual evidence

a)

Follicle

b)

Cortex

c)

Melanin Granules

d)

Nuclear DNA

78.

human hair consists of a -------- and a -----

a)

Follicle

b)

Shaft

c)

Medulla

d)

Cortex

79.

what s a fragmented or segmented medulla?

a)

one unbroken line

b)

pigmented lines broken at regular intervals

c)

pigmented line unevenly spaced

d)

none of the above

80.

how to tell of hair is or was bleached ?

a)

looks white

b)

one strand of hair is 2 different colors

c)

hair looks to change color in sunlight

d)

hair lacks pigment in cortex and cuticle

81.

how to tell if hair is dyed ?

a)

hair is stained only in cortex

b)

hair is only stained in medulla

c)

cuticle and cortex are stained

d)

looks different than from other hairs

82.

how to tell human hair from animal hair ?

a)

patter of pigmentation

b)

medullary index

c)

cuticle type

d)

all the above

83.

the cuticle of hair can hep distinguish human hair for animal hair, what cuticle is mouse ?

a)

imbricate

b)

coronal

c)

spinous

d)

all the above

84.

how meany hairs are collected from a suspects head

a)

25

b)

70

c)

100

d)

50

85.

Match the following hairs with the type of DNA that can be extracted

a)

nuclear DNA

1.

hair with an attached follicle/root

b)

mitochondrial DNA

2.

hair that lacks a follicle/root

c)

3.

contains nuclear DNA

d)

4.

contains only mitochondrial DNA

86.

Label the parts of a hair shaft

a)

medulla

b)

cortex

c)

cuticle

1
2
3
1)
2)
3)
87.

Using this picture of a hair shaft seen using an electron microscope, where is the OLDEST part of the hair?

a)

top

b)

bottom

c)

middle

d)

can't tell from the picture since you can't see the scalp

88.

A young child is kidnapped from her school playground. Shown below is a reference sample of the kidnapped child's hair. The only cars that left the parking lot before the child was discovered to be missing were those of four cafeteria workers. The car of each worker was searched below. Which recovered hair, if any, is consistent with that of the victim and warrants further investigation?

a)

Worker A

b)

Worker B

c)

Worker C

d)

Worker D

89.
The tough clear outside covering of a hair shaft is
a)
cuticle
b)
cortex
c)
medulla
d)
polymer
90.
The middle layer of a hair shaft that contains pigment
a)
the cortex
b)
the medulla
c)
the cuticle
d)
the polymer
91.
What type of evidence is hair without the follicular tag considered?
a)
Individual
b)
Class
92.
Human or nonhuman hair?
a)
human 
b)
nonhuman

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