Fingerprints refer to an impression of the cutaneous ridges of the fleshy distal portion of a finger. They are used as an effective means of crime detection.
The following is an example of a case law on fingerprints:
In examining fingerprints, an examiner first analyzes the fingerprints and searches for pattern types, such as loops, whorls, and arches. After identifying these pattern types, the examiner compares the two fingerprints side-by-side to determine whether there is any difference between the fingerprints. [United States v. Cornejo, 2010 U.S. Dist. LEXIS 108731, 7-8 (D. Kan. 2010)].