Cigarette-related garbage can be easily found on anywhere, even at the crime scene. Cigarette evidence can provide DNA evidence and have been used in investigation for a long time. If very small amounts of DNA are detected or in a mixture with contaminants, it is hard to analysis DNA In this case, fingerprints can be conclusive evidence to identify suspects. However, when 1,2-indanedione (1,2-IND) was applied to cigarettes, the background was stained and made it difficult to identify ridges. Therefore, latent fingerprint development research is needed in such case, and when DNA analysis is difficult on cigarettes. In this study, 1,2-IND and Ruthenium tetroxide (RTX) were used to compare the development of latent fingerprints on cigarettes, which are porous surfaces. On the filter part of cigarettes, latent fingerprints were clearly developed on both 1,2-IND and RTX, but on the body part of cigarettes, 1,2-IND reacted with tobacco leaves and showed a fluorescence reaction on the background, making it difficult to identify the ridges of the fingerprints. On the other hand, when RTX was applied, clear ridges were appeared on the body part of cigarettes. In addition, the RTX did not leave many stains on the background. The 1,2-IND is currently the most effective latent fingerprint development technique on porous surfaces but it is estimated to react with amino acid components contained in a cigarette. Therefore, when there is a need to develop latent fingerprints on cigarettes, it is confirmed that RTX reagent is much more effective than 1,2-IND reagent.
목차
Abstract Ⅰ. 서론 Ⅱ. 실험재료 및 방법 1. 시약 및 재료 2. 지문형성 Ⅲ. 결과 1. 담배의 필터에 형성된 지문 현출 결과 2. 담배의 몸통에 형성된 지문 현출 결과 3. 담배 구성물의 1,2-IND 시약 적용 결과 Ⅳ. 고찰 및 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.