真空金屬鍍膜設備在潛伏指紋顯現之應用

Application of Vacuum Metal Deposition to Latent Fingerprint Development

陳錦民(Chin-Min Chen) ； 王光全(Kuang-Chuan Wang) ； 廖哲賢(Jeh-Shane Liao) ； 程曉桂(Sheaw-Guey Cheng)

《科儀新知》 186期 (2012/02) Pp. 25-30

https://doi.org/10.29662/IT.201202.0003

摘要

真空金屬鍍膜技術常見運用於日常用品表面美觀處理及高科技光電奈米金屬薄膜產業，在國內金屬工業中屬技術成熟的產業。此技術可利用物表與殘留指紋紋線成分之不同，產生鍍膜上的差異來顯現潛伏指紋。為能使國內成熟之「真空金屬鍍膜」產業技術成功地推動運用在我國刑事鑑識之指紋採證工作，提升潛伏指紋採驗水準，刑事警察局與國立臺灣科技大學材料所技術合作，於國內自行研製真空金屬鍍膜設備，並利用此設備發展指紋顯現技術，建立適用顯現潛伏指紋之蒸鍍條件，提供標準方法流程等，以強化我國指紋採證技術及效能。

並列摘要

Vacuum metal deposition (VMD) techniques, well established and mature in Taiwan, are commonly used in nano-optoelectronics industry and in the surface treatment of commodities for both beautification and functionality purposes. Owing to the micro-structural differences between an object surface and the fingerprint residues left on it, and hence the different coating environments, the surface-specific VMD can be used to develop the individually unique latent fingerprints. In order to have the VMD techniques successfully applied in our country's latent fingerprint development and to promote the level of the specialty of our country, we have set up a homemade fingerprinting VMD equipment in our lab under a cooperation agreement with the Department of Materials Science and Engineering, National Taiwan University of Science and Technology (NTUST). The interdisciplinary collaborative project has been accomplished with the following achievements: establishment of the first forensic VMD equipment in Taiwan and its high performance in latent fingerprint development (which has in turn enhanced our ability in fingerprint identification), establishment of the methods for developing latent fingerprints on ordinary and special surfaces, optimization of experimental conditions for latent fingerprint development, standard operation procedures made available, etc.