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a–f An unusual fingerprint pattern named as a single spiral whorl with a mess enclosed by the spire. g A single spiral whorl according to the classification given by Henry. h A double spiral whorl according to Henry’s classification
Source publication
The tenacity of the fingerprint evidence for the identification of criminals has been well documented, but none of the research work so far focussed on unusual prints. Therefore, in the present study, we attempted to define rarely encountered fingerprints in a human population. Our purpose was to explore unusual pattern types on the finger balls an...
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Citations
... The diversity in sweat pore types is useful for population characterisation (Chovancová et al. 2023;Tafazoli et al. 2013). Thus, fingerprint analysis is crucial for identification purposes since each person possesses a distinct and unique ridge pattern, making fingerprints an exceptional tool for identification within the field of forensic science (Krishan et al. 2013;Baryah et al 2023). Fingerprint ridge density holds great importance in the field of forensic science, referring to the number of epidermal ridges within a specific area on the epidermal layer of the distal phalanges (Sharma et al. 2021). ...
The science of fingerprints is very crucial in criminal investigation as it helps identify perpetrators or victims of a crime. Fingerprint ridge density (FPRD), which refers to the number of ridges within a specific area on the epidermal skin layer of the distal phalanges in humans, has been found to differ between males and females. This study attempts to estimate the sex from FPRD and evaluates the diversity in FPRD across several topological areas. The study involves 208 participants (120 males, 88 females) between the ages 18 to 25 years from a North-west Indian population. Fingerprints were collected, and FPRD was accessed in radial, ulnar, and proximal areas as recommended by Gutierrez-Redomero et al. (Forensic Sci Int 180(1):17–22, 2008). FPRD has been quantified using the techniques described by Acree (Forensic Sci Int 102(1):35–44, 1999). When evaluating FPRD in the lateral pocket loops and twin loops, the proximal-side core was considered. The study reveals that males have a mean fingerprint ridge density of 12.82 ridges/25 mm² while females have 13.01 ridges/25 mm². Females have higher fingerprint ridge density solely in the proximal area; males have higher fingerprint ridge density in both radial and ulnar areas. In conclusion, this research underscores the potential of fingerprint ridge density as a parameter for investigating population variations and individual identification. Future studies on fingerprint ridge density in India’s diverse population will help establish reference ranges, allowing for sex and likely population group estimation, making it a valuable tool for preliminary examinations and exclusion criteria for sex estimation in crime scene investigations.
