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Biblioteka

Hair and Fiber Fest

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Posljednje ažuriranje about 1 year ago
15

1) This is a hair sample taken from a human. Please refrain from moving the slide.

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1
Pitanje 1
1.

What pigment is responsible for the coloring of hair?

Pitanje 2
2.

What type of medulla pattern is present?

2) This station is a microscope and hand sample of the fiber!

  • There is a small sample of the fiber to the right of the microscope - perform a burn test on it using the forceps and candle.

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Pitanje 3
3.
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Pitanje 4
4.

Which of the following options is the most likely identity of the fabric?

3) This station consists of a microscope slide and a piece of blue yarn. A few fibers from the yarn are placed under the microscope for you to view.

  • If you perform a burn test, cut a piece of the yarn. DO NOT BURN THE ENTIRE YARN.

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Pitanje 5
5.

4) This is a textile sample taken from the exotic land of Joann's Fabrics. Use the microscope to make observations.

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Pitanje 6
6.

What type of weave pattern is this?

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Pitanje 7
7.

5) This is a hair recovered from a crime scene. One slide contains the hair itself, while the other contains the cuticle impression.

Please do not move either of the slides.

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Pitanje 8
8.
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Pitanje 9
9.

6) This is an unknown fabric recovered from the depths of Mr. Ly's closet.

If you choose to utilize the burn test, only burn 1 thread please.

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Pitanje 10
10.

What type of weave pattern is shown?

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Pitanje 11
11.

List 2 qualities that improve the value of this fiber as evidence and explain why.

7) This is an unknown hair taken from a cave where an alleged killer used to hang out...

PLEASE DO NOT MOVE THE SLIDE.

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Pitanje 12
12.

What type of scale pattern is present?

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Pitanje 13
13.

In your expert opinion, is this an animal hair or a human hair? Explain how you know.

8) Use the dissecting microscope to analyze the fabric.

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Pitanje 14
14.

What type of weave pattern is this?

9) MYSTERY THREAD

Determine the identity of the thread BY ANY MEANS NECESSARY (except physical violence - that's not cool).

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Pitanje 15
15.