earticle

영어

In many countries, firearm-related homicides are prevalent due to less stringent gun control regulations compared to Korea, leading to extensive research on bloodstain patterns caused by firearms. However, in Korea, where kitchen knives are commonly used in homicides due to their accessibility, research on the bloodstain patterns they create is significantly lacking both domestically and internationally. This study aims to distinguish between spurt bloodstains produced by a moving bleeding part (e.g., wrist) injured by a kitchen knife and swing cast-off bloodstains resulting from the swinging of a kitchen knife. The findings revealed that spurt bloodstains formed in the direction of the movement for both straight and curved trajectories. In contrast, swing cast-off bloodstains formed a straight trajectory when the knife was swung straight, but spread radially when the knife followed a curved path. These results are expected to contribute significantly to crime scene bloodstain pattern analysis, aiding in crime reconstruction and in determining the intent of the perpetrator.