Chemical investigations into the lipid fraction of latent fingermark residue
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The lipid fraction of latent fingermark residue encompasses a number of compounds crucial to fingermark detection on wetted porous substrates. This thesis describes investigations into the detection and chemical analysis of the lipid fraction of latent fingermarks. Two novel reagents for fingermark detection were developed from lipophilic histological stains. Chemical analysis of fingermark lipids found insufficient variation to discriminate between individuals or donor traits, however significant differences were observed as a function of sample age.
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Fritz, Patrick; Van Bronswijk, Wilhelm; Lepkova, Katerina; Lewis, Simon; Lim, K.; Martin, D.; Puskar, L. (2013)Synchrotron-infrared microscopy provides a non-destructive technique to investigate the chemical composition of latent fingermarks in-situ. The high spatial resolution and brightness of the synchrotron source also lends ...
Revealing the spatial distribution of chemical species within latent fingermarks using vibrational spectroscopy.Dorakumbura, B.; Boseley, R.; Becker, Thomas; Martin, D.; Richter, A.; Tobin, M.; van Bronswjik, W.; Vongsvivut, J.; Hackett, Mark; Lewis, Simon (2018)Latent fingermarks are an important form of crime-scene trace evidence and their usefulness may be increased by a greater understanding of the effect of chemical distribution within fingermarks on the sensitivity and ...
Monitoring compositional changes of the lipid fraction of fingermark residues deposited on paper during storageFrick, Amanda; Chidlow, Geoff; Goodpaster, J.; Lewis, Simon; Van Bronswijk, Wilhelm (2016)Characterising the changes in fingermark composition as a function of time is of great value for improving fingermark detection capabilities by understanding the processes and circumstances under which target compounds ...