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A study of sex differences in fingerprint ridge density in a North Indian young adult population

*, Kewal Krishan and Kanchan, Tanuj and Ngangom, Chitrabala (2013) A study of sex differences in fingerprint ridge density in a North Indian young adult population. Journal of Forensic and Legal Medicine , 20. pp. 217-222.

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Abstract

Fingerprints have considerable value in morphological, biological,anthropological and forensic studies.Fingerprints collected from the crime scene and from the items of evidence of crime have beensuccessfully used to identify suspects, victims or any other person who had touched the surface inquestion. The thickness of epidermal ridges varies between individuals; females are supposed to havefiner ridges than males and therefore a greater ridge density. The present research is an attempt todistinguish sex from fingerprint ridge density in the radial, ulnar and lower areas of a fingerprint ina North Indian population. A total of 194 individuals (97 males and 97 females) aged between 18 and 25years were included in the study and fingerprints were collected from each finger of the participants. Thus, a total of 1940 fingerprints were obtained and epidermal ridges were counted in the radial, ulnar,and lower areas of each fingerprint. The radial and ulnar areas are the 5 mm x 5 mm areas on the radialand ulnar side of the central core respectively while the lower area is designated as 5 mm x 5 mm areaadjoining the flexion crease of the terminal phalanx on a fingerprint. The fingerprint ridge density inradial, ulnar and lower areas and between sexes was compared statistically using t-test. The resultsindicate that the females tend to have a significantly higher ridge density than males in the three areasanalyzed in the study. The fingerprint ridge density in the ulnar and radial areas of the fingerprints issignificantly higher than the lower area. The present study suggests that the fingerprint ridge density canbe a relevant and useful morphological parameter in distinguishing sex of a latent fingerprint ofunknown origin from the scene of crime. The findings can also be useful in identification of mutilated remains when a dismembered hand is brought for medico-legal examination

Item Type: Article
Uncontrolled Keywords: Forensic science; Forensic identification; Dactylography; Dermatoglyphics; North Indian population
Subjects: Medicine > KMC Mangalore > Forensic Medicine
Depositing User: KMCMLR User
Date Deposited: 30 May 2013 05:19
Last Modified: 30 May 2013 05:19
URI: http://eprints.manipal.edu/id/eprint/136165

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