The fats, waxes, and oils produced by a person's body and deposited on a surface as a fingerprint form the basis of several methods of fingerprint identification.

Question

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The substances left behind from a person's skin, including fats, waxes, and oils, can form a residue pattern that matches the ridges and patterns of their fingerprints. This residue can be used in various fingerprint identification methods to help identify individuals.

The Fats, Waxes, and Oils Produced by a Person's Body