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Principles of Fingerprints

1) a fingerprint is an individual characteristic because no two fingers have yet to be found to possess identical ridge characteristics
2) a fingerprint have general ridge patterns that permit them to be systematically classified
3) a fingerprint will remain unchanged during an individual's lifetime

layer in between the dermis and the epidermis that forms fingerprints

dermal palpillae

ulnar loop

opens toward little finger

radial loop

opens toward thumb


Automated Fingerprint Information System


Reflected Ultraviolet Imaging System; detects latent prints without chemicals or powders

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