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http://dx.doi.org/10.5806/AST.2007.20.2.155

The studies of developing latent fingerprint in general print papers by chemical reaction  

Roh, Seung-Chan (Dept. of Scientific Criminal Investigation, Chungnam National University)
Choi, Mi-Jung (Dept. of Scientific Criminal Investigation, Chungnam National University)
Kim, Man-Ki (Dept. of Scientific Criminal Investigation, Chungnam National University)
Lee, Oho-Taick (Physics and Chemistry Div., Laboratory of Scientific Investigation, Ministry of National Defense)
Park, Sung-Woo (Dept. of Scientific Criminal Investigation, Chungnam National University)
Publication Information
Analytical Science and Technology / v.20, no.2, 2007 , pp. 155-163 More about this Journal
Abstract
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.
Keywords
latent fingerprint; general print paper; newspapers; Ninhydrin; DFO; Iodine fuming;
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