earticle

영어

Footprints are crucial forensic evidence found at crime scenes, possessing both class and individual characteristics that can aid in suspect identification. When a suspect assaults a victim, such as by kicking, shoe prints can be transferred onto the victim's clothing, providing decisive evidence amid conflicting statements between the victim and suspect. However, it is generally challenging to visually detect footprints on dark-colored clothing, and it is even more difficult to reveal prints on surfaces that are intricately patterned or multicolored. This study describes a method for revealing footprints formed on clothing surfaces by shoes contaminated with specific foreign substances like charcoal, using infrared(IR) Photography. In this experiment, a shoe artificially worn, scratched, or scuffed was dusted with charcoal powder and then contacted with various types of fabric to create footprints. These prints were photographed under infrared light in a darkroom and compared with photographs taken under typical indoor lighting conditions. The results suggest that footprints embedded with substances like charcoal can be effectively revealed on fabric surfaces using infrared Photography.