chapter 3 physical evidence
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Chapter 3 Physical Evidence. 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. - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Chapter 3 Physical Evidence](https://reader036.vdocuments.us/reader036/viewer/2022062501/568166dd550346895ddb0857/html5/thumbnails/1.jpg)
Chapter 3 Physical EvidenceSamples 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
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Sources of DNA 100
• List the source of DNA for each of the following– Blood– Saliva– Semen
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Sources of DNA 200
• Name and identify the layer that contains DNA
A
B
C
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Sources of DNA 300
• Name and give the function of each part of the human blood
![Page 5: Chapter 3 Physical Evidence](https://reader036.vdocuments.us/reader036/viewer/2022062501/568166dd550346895ddb0857/html5/thumbnails/5.jpg)
Sources of DNA 400
• This part of the human blood actually carries the oxygen
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Sources of DNA 500
• Identify and give the function of each part
C
D
E
A
B
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Pieces of Physical evidence 100
• What is the only source of error in physical evidence?
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Pieces of physical evidence 200
• Explain the difference between a solute and a solvent
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Pieces of physical evidence 300
• This piece of physical evidence is defined as the firearm discharge left on a victim and /or shooter
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Pieces of physical evidence 400
• This piece of physical evidence is natural or synthetic and is often transferred during a crime
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Pieces of evidence 500
• What type of substances are retrieved from arson crime scenes?
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Individual vs class 100
• This type of evidence is linked to an entire group
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Individual vs class 200
• A ripped t-shirt with a purple paint stain is considered what type of evidence?
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Individual vs class evidence 300
• This scientist is responsible for determining that fingerprints are individual pieces of evidence
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Individual vs class evidence 400
• Explain the purpose of the product rule
![Page 16: Chapter 3 Physical Evidence](https://reader036.vdocuments.us/reader036/viewer/2022062501/568166dd550346895ddb0857/html5/thumbnails/16.jpg)
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+2- 2%
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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
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Handwriting analysis 200
• What are the three characteristics analyzed by line form?
• Pressure• Smooth and darkness• speed
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Handwriting analysis 300
• Explain the difference between an exemplar and a questioned document.
• Identify each in the sample below
Sample 1 Sample 2
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Handwriting analysis 400
• Based on this handwriting sample, is this person lying? Explain how you know.
![Page 21: Chapter 3 Physical Evidence](https://reader036.vdocuments.us/reader036/viewer/2022062501/568166dd550346895ddb0857/html5/thumbnails/21.jpg)
Handwriting analysis 500
• List the 3 categories of people involved in crime scene reconstruction.
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Specific cases 100
• A yellow-green carpet fiber convicted this man of murder
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Specific cases 200
• Wayne Williams was convicted of?
![Page 24: Chapter 3 Physical Evidence](https://reader036.vdocuments.us/reader036/viewer/2022062501/568166dd550346895ddb0857/html5/thumbnails/24.jpg)
Specific cases 300
• This man was convicted solely on the testimonial evidence given by Joseph Foy 15 years later
![Page 25: Chapter 3 Physical Evidence](https://reader036.vdocuments.us/reader036/viewer/2022062501/568166dd550346895ddb0857/html5/thumbnails/25.jpg)
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
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Specific cases 500
• Explain the difference between corroboration and identification
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