Cheiloscopy: Exploring the Gender and Age Patterns in Lip Prints

Abstract

Lip prints, like fingerprints, possess unique characteristics that can be utilized as biometric data for identification and gender determination. Using the forensic examination technique known as cheiloscopy, 23 distinctive features of lip prints have been identified. This study employs the Suzuki and Tsuchihashi classification system to investigate the correlation between five types of lip print patterns, gender, and age. The study's sample consists of 100 random and voluntary participants, equally divided into 50 women and 50 men. Feature extraction focused on seven distinctive characteristics and their frequencies. The study also explored the presence of any unique, previously undefined features. The findings indicate that lip print characteristics vary based on age and gender. While the study suggests that lip prints could be a useful tool in crime investigation, it highlights the need for further research with larger sample sizes.