Fiber Lab.docx - Vickie Previna SCI 114 Microscopic Analysis of Fibers 1 What are fibers and where are they found How could forensic scientists use

Fiber Lab.docx - Vickie Previna SCI 114 Microscopic...

This preview shows page 1 out of 1 page.

Vickie Previna SCI 114 Microscopic Analysis of Fibers 1. What are fibers and where are they found? How could forensic scientists use fibers to solve a crime? Fibers are synthetic or natural substances thats is classified as trace evidence. Fibers are usually found on clothing, rugs, victims, suspects, nearly anywhere. Forensic scientists can observe fibers and link them to a crime scene or to a suspect. 2. Define the word probative. What is the probative value of your group’s unknown fiber identities, for a forensic investigation? Probative is being able to prove something using proof and evidence. The probative value is high we came to the conclusion that fibers G, H & I are nylon, viscoe, and acetate after examining each fiber and comparing them to the unknowns. 3. How can you explain if your analysis of the unknown fiber yields results that either do not match the results for your 6 standards, or match results for multiple standards?
Image of page 1

Unformatted text preview: If my analysis of the unknown fiber yields results that do not match the results its possible that it is an unidentified fiber, similar to the beginning of the Telltale rabbit case as mentioned in the powerpoint. If they match results for multiple strands it's possible that its a mixture of fibers. 4. Which of the 6 fiber types are natural? Which are man-made? Of the 6 fiber types, wool, silk, and cotton are natural. Nylon, viscoe, and acetate are man-made. 5. What are some other distinguishing characteristics of fibers that were not used in this lab that are used in forensic investigations to identify fiber type? Some other distinguishing characteristics of fibers that were not used to identify fiber types are color, chemical composition, morphology, and birefringence....
View Full Document

  • Fall '19
  • Dr. Li

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern

Ask Expert Tutors You can ask 0 bonus questions You can ask 0 questions (0 expire soon) You can ask 0 questions (will expire )
Answers in as fast as 15 minutes