This study utilized scanning electron microscopy (SEM) to analyze the morphological characteristics of hair cut by various methods. In forensic investigations, hair serves as crucial evidence. When the hair root is present, DNA analysis can be employed for individual identification. However, when hair is cut in the middle, DNA analysis becomes challenging, making the morphological analysis of cut marks an essential aspect of forensic examinations. In this study, hair samples were cut using various tools, including a scalpel, utility knife, and scissors. SEM images were then obtained, and the morphological differences between tool-cut hair and hair severed by tensile force were compared and analyzed. The results indicated that tool-cut hair exhibited distinct striation marks on the cross-section, with the cuticle layer shifting in the direction of tool insertion, leaving scratch-like marks. In contrast, hair that was forcibly pulled apart showed no tool marks and displayed an irregular fracture pattern. These findings contribute to the quantitative and qualitative assessment of hair cut marks in forensic investigations and provide fundamental data for expanding the application of morphological hair analysis in criminal cases.
목차
Abstract Ⅰ. 서론 Ⅱ. 재료 및 방법 1. 실험 재료 2. 실험 방법 3. 분석 방법 Ⅲ. 결과 및 고찰 1. 단날 도구를 사용한 모발 절단 실험 결과 2. 양날 도구를 사용한 모발 절단 실험 결과 3. 인장력으로 손상된 모발 분석 결과 4. 고찰 Ⅳ. 결론 Ⅴ. 사사 Ⅵ. 참고문헌
키워드
Scanning Electron MicroscopyHuman hairTensile forceCutting methodCross-section image
법과학 분야는 사회정의 구현에 있어 크나큰 가치가 있음에도 불구하고 우리나라에서는 이 분야에 대한 인식이 미흡하여 선진 외국에 비해 침체되어 있는 실정이다. 이에 우리나라에서도 법과학 분야와 관련 있는 학계, 연구기관, 수사기관 등 유관 단체들로 구성된 한국 법과학회를 창립하여 이 분야를 활성화 시켜 과학수사를 한층 더 발전시키기 위함을 목적으로 한다.