화학반응을 이용한 일반 프린트용지의 잠재지문 현출에 관한 연구

Porosity paper evidence is encountered in case of forgery, kidnapping, fraud and terrorist activity. The present study was designed to evaluate the effect of three chemical reagents (Ninhydrin, 1,8-diazafluoren-9-one (DFO), Iodine fuming) to the quality of developed latent fingerprints on porosity p...

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Veröffentlicht in:Punsŏk kwahak 2007, 20(2), , pp.155-163
Hauptverfasser: 노승찬(Seung-Chan Roh), 최미정(Mi-Jung Choi), 김만기(Man-Ki Kim), 이오택(Oho-Taick Lee), 박성우(Sung-Woo Park)
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Sprache:kor
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Zusammenfassung:Porosity paper evidence is encountered in case of forgery, kidnapping, fraud and terrorist activity. The present study was designed to evaluate the effect of three chemical reagents (Ninhydrin, 1,8-diazafluoren-9-one (DFO), Iodine fuming) to the quality of developed latent fingerprints on porosity printing papers and newspaper. In case of printing papers, print quality was better with Iodine fuming method than Ninhydrin and DFO treatment to developing latent fingerprints. Developing latent fingerprint on newspapers was achieved with Iodine fuming processing. The processing of Iodine fuming followed by DFO and by using blue light (orange red filter) exhibited better results with Iodine fuming. Enhancement of latent fingerprint detection image using Digital Imaging System was achieved. 다공성 지류의 증거물은 문서위조, 유괴, 사기와 테러 등의 범죄현장에서 발견된다. 본 실험은 다공성 지류인 일반 프린트 용지와 신문지의 잠재지문 현출에 Ninhydrin, 1,8-diazafluoren-9-one (DFO) 그리고 Iodine fuming의 효과를 평가하고 지류에 따른 적절한 방법을 확인하고자 하였다. 일반 프린트 용지의 경우 Ninhydrin과 DFO의 처리보다 Iodine fuming법으로의 처리가 현출효율이 증대되었다. 신문지의 경우 Iodine fuming 법으로의 현출이 효과적이었으며 DFO로의 재처리와 blue light 광원에서 orange red filter의 사용으로 현출의 증가를 보였다. 또한 현출영상의 개선을 위해 Digital Imaging System(DIS)를 이용한 결과 효율의 증가를 확인할 수 있었다.
ISSN:1225-0163
2288-8985