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http://dx.doi.org/10.5806/AST.2022.35.3.129

Comparison of aging fingerprint enhancement by pre-treatment of various initiator powders in the cyanoacrylate fuming method  

Kim, Kyung-Soo (Department of Scientific Criminal Investigation, Chungnam National University)
Lee, Yoon-Jeong (Department of Scientific Criminal Investigation, Chungnam National University)
Seo, Kyung-Suk (Crime and Scientific Investigation Team, Chungnam Provincial Police Agency)
Publication Information
Analytical Science and Technology / v.35, no.3, 2022 , pp. 129-135 More about this Journal
Abstract
We tested the pre-treatment of alumina, leucine, alumina mixed with leucine at ratios of 9:1 (Al-Leu (9:1)) and 5:1 (Al-Leu (5:1)), and alumina mixed with sodium lactate at a ratio of 5:1 (Al-Lac (5:1)) on aged fingerprints (1, 7, 14, and 30 days after natural fingerprinting) before cyanoacrylate (CA) fuming to improve the development efficacy. As a result of the experiment, fingerprints with pre-treatment of alumina, leucine, Al-Leu (9:1), Al-Leu (5:1), and Al-Lac (5:1) showed better development efficacy (area and minutiae) than fingerprints without pre-treatment. Therefore, this modified CA fuming method improved the development efficacy with five pretreatments.
Keywords
cyanoacrylate fuming (CA fuming) #1; initiator #2; latent fingerprint #3; aged fingerprint #4; pre-treatment #5;
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