Fingerprinting Flashcard

A fingerprint is an impression or mark made by the pattern of ridges and valleys on the skin of a person's finger, unique to each individual.

The three main types of fingerprint patterns are loops, whorls, and arches.

A loop fingerprint is a pattern where the ridges enter from one side, loop around, and exit from the same side.

A whorl fingerprint is a pattern characterized by circular or spiral ridges that form a complete circuit.

An arch fingerprint is a pattern where the ridges rise in the center, creating a wave-like appearance.

A radial loop opens towards the thumb (radial), while an ulnar loop opens towards the little finger (ulnar).

Fingerprints can be used to identify suspects, link them to crime scenes, and exclude innocent individuals.

The uniqueness of fingerprints means that no two individuals have the same fingerprint patterns, making them reliable for identification.

Fingerprint analysis involves comparing the ridge patterns, minutiae points, and overall characteristics of fingerprints.

Minutiae points are specific features in a fingerprint, such as ridge endings and bifurcations, used for comparison.