Topological Variability of Fingerprint Ridge Density in a Sub-Saharan Population Sample for Application in Personal Identification
Authors
Gutiérrez Redomero, Esperanza; Alonso Rodríguez, María Concepción; Quirós , J.A.; Rivaldía , N.Identifiers
Permanent link (URI): http://hdl.handle.net/10017/32107DOI: doi: 10.1111/1556-4029.12092
ISSN: 0022-1198
Date
2013Affiliation
Universidad de Alcalá. Departamento de Ciencias de la Vida; Universidad de Alcalá. Departamento de Física y MatemáticasBibliographic citation
Journal of Forensic Sciences, 2013, v. 3, n. 58, p. 592-600
Keywords
Forensic science
Fingerprints
Forensic anthropology
Dermatoglyphics
Ridge density
sub-Saharan
Spanish
Document type
info:eu-repo/semantics/article
Version
info:eu-repo/semantics/publishedVersion
Publisher's version
http://dx.doi.org/10.1111/1556-4029.12092Rights
Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
Access rights
info:eu-repo/semantics/openAccess
Abstract
Variability in ridge density in a sub-Saharan population sample was studied by counting ridges in three fingerprint areas (two distal regions, radial and ulnar, and one proximal region) on the epidermal surface of the distal phalanx. Study material was obtained from the fingerprint impressions of 100 male sub-Saharan subjects aged between 18- and 48-years old. The results were compared with those obtained from a Spanish population sample. Sub-Saharan males presented lower ridge density than Spanish males in the distal regions (radial and ulnar) of all fingers, whereas differences in the proximal region were only observed on some fingers. Using the differences observed between these populations, the likelihood ratio for inferring membership of one of the populations from a fingerprint of unknown origin was calculated; therefore, a ridge density of 14 or less for both areas (ulnar and radial), support an origin sub-Saharan versus Spanish population.
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