Thesis
Latent Fingerprint Enhancement on Recycled Plastic and Compostable Paperboard Drink Containers
Masters by Research, Murdoch University
2023
Abstract
Human fingerprints are individualising, so when found at a crime scene they can potentially be of high evidential value. Fingerprints are easily deposited through touch, leaving behind the ridge pattern. Ridge patterns can be enhanced using fingerprint development methods which increase the contrast between the print and receiving substrate. This paper will review all relevant information published during the 21st century surrounding four well established fingerprint development methods; ninhydrin, indanedione, cyanoacrylate fuming and powders. The mechanisms under which these methods react with fingerprint residues, their applications and limitations will also be analysed. It will become evident that optimal fingerprint development methods vary between substrate types. As contemporary substrates are becoming more environmentally sustainable their compositions are changing from those of the traditional materials. Literature suggests that environmentally sustainable materials, such as biodegradable or recycled materials, react differently to their traditional alternatives when undergoing fingerprint development methods, a claim to be analysed. Through systematically reviewing the literature it was found that no research has been conducted to determine what fingerprint method is ideal for developing fingerprints on recycled polyethylene terephthalate (PET) plastic and compostable cardboard drink containers, the main materials used in disposable water bottles and takeaway cups in Western Australia. This gap in the literature is problematic in a forensic context since the loss of print quality can result if the appropriate development method is not utilised. For this reason, it will be recommended that research be conducted to determine which forensic fingerprinting method is optimal for yielding high-quality ridge detail on the identified environmentally sustainable materials.
Details
- Title
- Latent Fingerprint Enhancement on Recycled Plastic and Compostable Paperboard Drink Containers
- Authors/Creators
- Brooke E Hynes
- Contributors
- John Coumbaros (Supervisor) - Murdoch University, School of Medical, Molecular and Forensic SciencesRenee Jelly (Supervisor)
- Awarding Institution
- Murdoch University; Masters by Research
- Identifiers
- 991005631770207891
- Murdoch Affiliation
- School of Medical, Molecular and Forensic Sciences
- Resource Type
- Thesis
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