CHEM 207 - Chapter #14 - Fingerprints

CHEM 207 - Chapter #14 - Fingerprints - Fingerprints Finger...

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Fingerprints Fingerprints
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Finger tip and rolled print Finger tip and rolled print
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History History Bertillon (1883) devised first systematic attempt at personal identification Evidence suggests that Chinese used fingerprints 3000 years ago (sign legal documents) Galton (1892) first book on prints ( Finger Prints) Adopted for use in USA in 1901
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Three Fundamental Principles Three Fundamental Principles First principle : A fingerprint is an individual characteristic; no two fingers have yet been found to possess identical ridge characteristics Ridge characteristics also called friction ridge skin, characteristics or minutiae
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Tested in court Passed Frye and Daubert hearings U.S. v. Bryon Mitchell, 2000
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From the Byron case, two court From the Byron case, two court findings findings 1. Fingerprints (Friction Ridge Skin, FRS) are unique and permanent 2. FRS arrangements are unique and permanent Typical print is blurry, a partial impression, showing only a segment of the entire print
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Second Principle A fingerprint will remain unchanged during an individual’s lifetime. Provides our bodies with firmer grasp
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This note was uploaded on 02/03/2012 for the course CHEM 207 taught by Professor Bacon during the Fall '11 term at Ferris State.

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CHEM 207 - Chapter #14 - Fingerprints - Fingerprints Finger...

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