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Fingerprints. bsapp.com. bsapp.com. Principles of Fingerprints. First Principle: A fingerprint is an individual characteristic; no two fingers have yet been found to posses identical ridge characteristics. bsapp.com. Principles of Fingerprints.
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Fingerprints bsapp.com
Principles of Fingerprints First Principle: A fingerprint is an individual characteristic; no two fingers have yet been found to posses identical ridge characteristics. bsapp.com
Principles of Fingerprints Second Principle: A fingerprint will remain unchanged during an individual's lifetime. bsapp.com
John Dillinger bsapp.com
Principles of Fingerprints Third Principle: Fingerprints have general ridge patterns that permit them to be systematically classified. bsapp.com
Three Main Types of Prints • Loops • Whorls • Arches bsapp.com
Deltas & Cores bsapp.com
Loops • A loop must have one or more ridges that enter from one side of the print, re-curve, and exit from the same side • One Delta & One Core bsapp.com
Whorls • One or more cores • At least two deltas bsapp.com bsapp.com
Arches • An arch is formed by ridges entering from one side of the print, rising slightly and exiting on the opposite side. • No Deltas & No Cores bsapp.com