Fingerprints. Chapter 14. History. Alphonse Bertillon - first systematic attempt at personal indentification detailed description of subject (portrait parle´) a verbal description of a perpetrator’s physical characteristics and dress provided by an eyewitness
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A fingerprint is an individual characteristic; no two fingers have yet been found to possess identical ridge characteristics
A fingerprint will remain unchanged during an individual’s lifetime
Fingerprints have general ridge patterns that permit them to be systematically classified.
R-Thumb R-Middle R-Little L-Index L-Ring
1) - iodide fuming
2) - ninhydrin
3) - Physical Developer