There are no research of how much soil transfer to hand and how long it persists during daily life, although soil is an important trace evidence. Therefore, the transfer and persistence characteristics of soil was investigated. As a result of observing 96 volunteers under the condition of not touching the soil within 1 hour, there was no case that more than grade-1 of soil was detected under the fingernails. 23 of them(24%) exhibited grade-1 of soil. From this point of view, it was found that even if a small amount of soil was attached, it could not be conclusively said that the suspect had recently performed soil-related activities. Also, if a person did not touch the soil, there are no grades higher than 2 were obtained. As a result of observing the transfer and persistence characteristics of soil under fingernails, we found that the soil quickly fell off at the initial stage and then slowly fell over time. In addition, even 120 minutes after touching the soil, 2 of 26 fingers(8%) had grade-3 of soil. So forensic investigators should not give up to collect the soil from suspects, even 120 minutes after arrest. We also found that the act of washing hands affected the amount of soil under the fingernails and the pace of soil persistence. Lastly, we found that the soil more slowly fell off under the fingernail than the fingertip because protection nature of the fingernail.
목차
Abstract Ⅰ. 서론 Ⅱ. 재료 및 방법 1. 재료 및 장비 2. 대상 및 방법 3. 전사된 토양의 양의 평가 4. 분석 방법 Ⅲ. 결과 및 고찰 1. 일상생활을 영위한 사람의 손톱 밑에 남아있는 토양의 양 2. 토양을 만진 사람의 손톱 밑에 남아있는 토양의 양 3. 토양의 탈락 4. 토양을 맨손으로 옮긴 후 손을 씻은 여부에 따른 토양의 탈락 경향성 비교 5. 토양을 맨손으로 옮기고 손을 씻지 않았을 때 손톱밑에 남은 토양의 지속성 대한 고찰 Ⅳ. 결론 Ⅴ. 사사 Ⅵ. 참고문헌
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.