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fingerprint
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fingerprint patterns fingerprint
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fingerprint patterns
fingerprint patterns Fingerprint patterns. From top left to bottom right: loop, double loop, central pocket loop, plain whorl, plain arch, and tented arch.

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Written by
J. Edgar Hoover
Director, Federal Bureau of Investigation, U.S. Department of Justice, Washington, D.C., 1924–72.
J. Edgar Hoover
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fingerprint, impression made by the papillary ridges on the ends of the fingers and thumbs. Fingerprints afford an infallible means of personal identification, because the ridge arrangement on every finger of every human being is unique and does not alter with growth or age. Fingerprints serve to reveal an individual’s true identity despite personal denial, assumed names, or changes in personal appearance resulting from age, disease, plastic surgery, or accident. The practice of utilizing fingerprints as a means of identification, referred to as dactyloscopy, is an indispensable aid to modern law enforcement. Each ridge of the epidermis (outer skin) is ...(100 of 981 words)

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