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Novel powder methods for the visualization of latent fingerprints: The case for tumeric and other spices

Yi, Renee (2018) Novel powder methods for the visualization of latent fingerprints: The case for tumeric and other spices. Masters by Coursework thesis, Murdoch University.

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Abstract

Human fingerprint is such an unique human identity that differ from person to person. Even a twin also don’t have an identical fingerprint. In a forensic investigation, the fingerprint is one of the most common evidence that can be found and considered valuable. It enables the possible identification of the person of interest in a criminal case. A latent fingerprint is an invisible fingerprint that maybe encountered in a crime scene. The process of enhancement is necessary for the latent fingerprint to be observed by naked eyes. Thus, it is an important process. The important consideration for the development of latent fingerprint is non-destructive to the evidence itself and the method is simple, easy and safe to the examiner.

Powdering method is one of the most common and traditional method been used since the 19th century. The principle of the powdering method is adhesion of the powder particles towards the natural residues that found on a latent fingerprint. Previously, researchers used different materials as fingerprint powder used during powdering but limitations were found. Some of the materials are toxic and endanger human health. Besides this, some of the fingerprint powders do not provide sufficient contrast and sufficient details of the fingerprint after enhancement. Thus, this literature review aims to critically assess the current literature that related to the use of novel powders such as spices – (eg. Turmeric) in the development of a latent fingerprints. The method of latent fingerprint developed by turmeric powder will be performed again to verify the result of previous research. Furthermore, due to currently there are no studies that have investigated the use of other novel powders such as cinnamon and paprika in latent fingerprint development, this literature review will also explore the chemical composition of both spices in order to assess the potential for new natural fingerprint powder in future.

Item Type: Thesis (Masters by Coursework)
Murdoch Affiliation: School of Veterinary and Life Sciences
Supervisor(s): Coumbras, John
URI: http://researchrepository.murdoch.edu.au/id/eprint/41444
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