Author(s): Zhao Yabin, Song Dan, Guo Wei, School of Criminal Science and Technology, People’s Public Security University of China
Pages: 1311-1315
Year: 2016 Issue:  11
Journal: Vacuum Science and Technology
Keyword:  VMD; Latent fingerprint; Fingerprint detection; Non-porous and semi-porous substrates;
Abstract: The latest progress in detection and identification of old latent fingerprints,left on non-porous and semi-porous substrates,were tentatively reviewed. The discussions focused on: i) the possible mechanisms responsible for forensic detection of latent finger-prints with metal thin films,synthesized on contaminated non-porous and semi-porous substrates,including but not limited to paper,plastics,polymer / cotton textures,ceramics,and ferrous magnetics; ii) the impact of the detection conditions,such as the contaminations,substrate material,quality and exposure time of finger-prints,type of metal and / or metal oxide coatings,and sample preparation techniques,on the possibility and sensitivity of latent finger-print detection; and iii) preliminary results reported in literature. In addition,the development trends,existing technical problems and possible solutionsof the latent finger-printer detection with metal films were also briefly discussedin a though provoking way.