Forensic Science
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4.3 Fingerprint Lab - Option 2
(20 Points)
Introduction:
In this lab you will investigate the three classes of fingerprints and identify defining characteristics of
each class of fingerprint. You will then take a look at how fingerprint technology has developed in recent
years and learn how fingerprint technology can be spoofed by criminals.
Procedure:
Part 1: Open the fingerprints technique manual and answer the following questions:
1.
What are the 3 fundamental characteristics of fingerprints? (1 point)
The three fundamental characteristics of fingerprints are:
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A fingerprint is an individual characteristic, no two fingers have identical ridge
characteristics
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A fingerprint will remain unchanged during an individual's lifetime
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Fingerprints have general ridge patterns which make it possible to systematically classify
2.
Draw a cross section of human skin and label the following parts: Ridge Island, Sweat Pores,
Epidermis, Papillae, Dermis, Duct of sweat gland, sweat gland, and Nerves of touch. (5 points)
3.
Draw an example of an arched fingerprint. (5 points)
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