Chapter 3 Physical Evidence
Samples of
DNA
Pieces of
physical
evidence
Individual vs
class evidence
Handwriting
analysis
Specific cases
100
100
100
100
100
200
200
200
200
200
300
300
300
300
300
400
400
400
400
400
500
500
500
500
500
Sources of DNA 100
• List the source of DNA for each of the
following
– Blood
– Saliva
– Semen
Sources of DNA 200
• Name and identify the layer that contains DNA
A
B
C
Sources of DNA 300
• Name and give the function of each part of
the human blood
Sources of DNA 400
• This part of the human blood actually carries
the oxygen
Sources of DNA 500
• Identify and give the function of each part
C
D
E
A
B
Pieces of Physical evidence 100
• What is the only source of error in physical
evidence?
Pieces of physical evidence 200
• Explain the difference between a solute and a
solvent
Pieces of physical evidence 300
• This piece of physical evidence is defined as
the firearm discharge left on a victim and /or
shooter
Pieces of physical evidence 400
• This piece of physical evidence is natural or
synthetic and is often transferred during a
crime
Pieces of evidence 500
• What type of substances are retrieved from
arson crime scenes?
Individual vs class 100
• This type of evidence is linked to an entire
group
Individual vs class 200
• A ripped t-shirt with a purple paint stain is
considered what type of evidence?
Individual vs class evidence 300
• This scientist is responsible for determining
that fingerprints are individual pieces of
evidence
Individual vs class evidence 400
• Explain the purpose of the product rule
Individual vs class evidence 500
• Complete the table with the proper
percentages and explain when this specific
example was used
Blood Factors
Frequency
•
A
•
EsD
•
PGM 2+22%
Handwriting analysis 100
• All of the following are used to analyze letters
in a questioned document EXCEPT:
– Proportionalsize
– Curves
– Slants
– Connection of lines between letters
– Paper quality
Handwriting analysis 200
• What are the three characteristics analyzed by
line form?
• Pressure
• Smooth and darkness
• speed
Handwriting analysis 300
• Explain the difference between an exemplar
and a questioned document.
• Identify each in the sample below
Sample 1
Sample 2
Handwriting analysis 400
• Based on this handwriting sample, is this
person lying? Explain how you know.
Handwriting analysis 500
• List the 3 categories of people involved in
crime scene reconstruction.
Specific cases 100
• A yellow-green carpet fiber convicted this man
of murder
Specific cases 200
• Wayne Williams was convicted of?
Specific cases 300
• This man was convicted solely on the
testimonial evidence given by Joseph Foy 15
years later
Specific cases 400
• In the 2 minute mystery Phony crash, list 3
pieces of physical evidence that could have
proven the victim intentionally crashed his car
off the cliff
Specific cases 500
• Explain the difference between corroboration
and identification