Introduction to Forensic Science

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Assignment

Chapter 6:

Chapter 7:

Chapter 8:

1. List and describe three types of fingerprints found at a crime scene.
2. Describe each of the three classes of fingerprints. Which class is the most common in the population? Which is least common?

1. What is the final step in fingerprint identification? Why is this step necessary if a computerized database of fingerprints is available to the forensic scientist?
2. What are the two primary types of forensic biometrics?
3. What is the most commonly used type of behavioral biometrics?
4. What are some of the reasons why iris biometrics is replacing retina biometrics?
5. Why is it almost impossible to obscure ones fingerprints by surgery or mutilation?
6. What aspect of a fingerprint determines its individuality?
7. Briefly describe how the Automated Fingerprint Identification System (AFIS) creates a fingerprint image. What characteristics of the fingerprint does the AFIS record for comparison?
8. What are some of the specific stages that comprise gait recognition as a form of behavioral biometrics?
9. What is one of the main problems with retina biometrics?
10. What is one significant advantage of automated facial recognition, as compared to other forms of biometrics such as iris and fingerprint systems?
11. Briefly describe how a comparison microscope works and what it is used for.
12. How can a scanning electron microscope be used to determine whether a suspect has recently fired a gun?
13. What happens to the field of view as the magnification of the compound microscope is increased? Explain.

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