Fundamental Studies into the Chemical and Physical Properties of Latent Fingermarks
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This thesis describes physical and chemical investigations performed on latent fingermarks deposited on non-porous surfaces in order to provide the necessary fundamental underpinnings for future fingermark research. Variation of the physical properties over time was investigated using a novel imaging mode of atomic force microscopy. Spatial distribution of fingermark components was investigated using high-resolution vibrational microspectroscopy techniques. Time-course transformation of squalene in fingermarks stored under different storage conditions was examined using liquid chromatography-high-resolution mass spectrometry.
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Zadnik, S.; Van Bronswijk, Wilhelm; Frick, Amanda; Fritz, Patrick; Lewis, Simon (2013)Commercially available fingermark simulants werecompared to latent fingermark deposits to assess their efficacy asstandards for a quality control assessment of fingermark developmentreagents. Deposits of the simulants and ...
Frick, Amanda; Fritz, Patrick; Lewis, Simon; Van Bronswijk, Wilhelm (2012)A simplified procedure for the recently introduced fingermark development reagent Oil Red O (ORO) is presented. This lipid-sensitive reagent offers the potential to detect latent fingermarks on porous substrates that have ...
Further investigations into the single metal deposition (SMD II) technique for the detection of latent fingermarksNewland, Talia G.; Moret, S.; Bécue, A.; Lewis, Simon (2016)Single metal deposition (SMD II), a recently proposed method for the development of latent fingermarks, was investigated by systematically altering aspects of the procedure to assess their effect on the level of development ...