earticle

영어

In this study, It also presents the possible method that is to take again after taking nAg powder, an usual powder which is placed at markets, a fluorescent powder, a magnetic pink powder, and CA fuming to military use. It is confirmed the relationship between an efficiency of searching latent fingerprint and a property of surface through analyzing basic document such as raman spectrometer analysis. As fingerprint is retaken after applying produced nAg powder, an usual powder which has in markets, a fluorescent powder, a magnetic pink powder, and CA fuming to military use, it is the best for fingerprint on phenols rosins to use nAg powder and magnetic pink powder, which is placed on markets. For fingerprint on melamine resin, it is the best to take again nAg powder and magnetic pink powder, which is placed on markets after CA fuming. And it is the best for polyethylene resin to use nAg powder. As nine kinds of military use are analyzed to use basic document such as raman spectrometer analysis, it is different for each surface property of sample. As the case of surface of porous paper is used to choose the method of searching fingerprint under the feature of evidence, it would be checked a property of evidence preferentially to use portable basic document analysis for surface of non-porous, and it would be picked the best method of searching fingerprint.

한국어

본 연구는 컵, 쟁반, 받침대 등의 군용품에서 nAg 분말과 시판 silver powder, green powder, magnetic pink powder 등으로 현출하고 또, CA fuming 현출 후 현출제 재처리 등의 방법으로 현출하였 다. 그리고 대상시료에 대하여 라만분광기, 적외선분광기 등 기초자료 분석을 통해 물리적 특성이 잠재 지문 현출효율에 미치는 연관성을 확인하였다. 그 결과 페놀 수지는 시판 magnetic pink powder과 제조 nAg 분말, 멜라민 수지는 CA fuming 후 시판 magnetic pink powder과 제조nAg 분말로 재처리한 방법, 폴리에틸렌 수지에서는 제조 nAg 분말을 사용한 현출이 우수하였다. 또한 대상시료의 물리적 특성 분석 을 통해 현출효율과의 연관성을 확인할 수 있어, 범죄현장에서 기초자료 분석이 가능한 휴대장비를 통해 우선적으로 분석하고 증거물 특성에 적합한 현출방법을 적용해야겠다.