Common Lip Print Research Articles

Assessment of lip print patterns and its use for personal identification among the populations of Rajnandgaon, Chhattisgarh, India.

Background:Personal identification plays an inevitable role in forensic investigation. Lip print is one of the evidences that can be left in the crime scene, which helps in identification purpose. Hence, the present study was undertaken to provide deeper inside view of use of cheiloscopy in personal identification, focusing on sex and age variability of lip print patterns in the population of Rajnandgaon city, Chhattisgarh, India.Materials and Methods:The cross-sectional study was conducted among 200 (100 males and 100 females) subjects of age 15-55 years, residing in different areas of Rajnandgaon city. The sex of the individual was determined as per the description given by Vahanwala et al. Frequency distribution and Chi-square test were used for data analysis by SPSS 16.0 V software.Results:The most common lip print pattern in entire population was Type I (27.5%). Very highly significant difference was found in the distribution of lip print patterns among males and females in the entire population, group I, and group III, respectively (P < 0.0001). The overall accuracy of cheiloscopy in sex determination was (high) 87.95%, 87.65%, 90.5%, and 80% in group 1, 2, 3, and 4, respectively.Conclusion:Thus, it can be concluded that lip prints can be used as one of the important forensic tools for personal identification on the basis of their age and gender variability among the populations.

A study on lip print types among North Karnataka people

Cheiloscopy, the study of lip prints is one of the important tools for identification of a person. Uniqueness of lip print of every individual helps to fix the identity of a person. Various studies have been conducted on lip prints, which have shown the differences among people belonging to different races and ethnic origins of people. The present study was conducted to establish the most common lip print type among North Karnataka population. A total number of 100 subjects were included in the study. Lipstick was applied to lips & the prints were taken by application of cellophane tape to the lips. Only the middle part of lower lip was chosen for the study purpose. The lip prints were studied based on Tsuchihashi’s classification, VIZ Type I [complete vertical], Type I’ (incomplete vertical Grooves), Type II (forking grooves), Type III (intersecting groves), Type IV (Reticular grooves), Type V (undetermined grooves). In this study, Type VI (reticular grooves) was the most common pattern.