Sexual Dimorphism in Lip Prints
DOI:
https://doi.org/10.37506/fcvsy029Keywords:
Cheiloscopy, Cheiloscopy, Lip print, sex determination, Lip patternAbstract
Background: Cheiloscopy, as a corroborative means of identification in Forensic Science gains more importance now-a-days. Both patent and latent lip prints are used as an evidentiary source in court of law in recent era. Aim: A cross-sectional study of various lip prints was conducted here to determine the sexual dimorphism with a sample size of 345 (Male – 160, Female – 185) after obtaining proper consent and ethical committee clearance. Methods: The prints were taken using the standard cellophane tape method after the application of red coloured lip stick which were classified according to the Tsuchihashi classification and analysed. Results: The study results revealed that Type V and Type I were predominantly seen in males and females respectively. Also, the study concludes that the pattern of the lip prints differs among the individuals. In spite of the difference noted in the prints, due to the over lapping features, cheiloscopy can be used as substantial evidence rather than a definitive one. Conclusion: Like fingerprints, the uniqueness of lip impressions between individuals is utilized by Forensic experts to utilize them as corroborative evidence in solving the crimes along with other primary evidences. Factors like the moisture or the oil and the type of the lip sticks may alter the visibility as well as the quality of the prints which reduces their evidentiary value. But the significant pattern of difference noted among the individuals in our study prove that lip prints can be used as a valid tool in identification.
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