Chemometrics in forensic science: Approaches and applications
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Forensic investigations are often reliant on physical evidence to reconstruct events surrounding a crime. However, there remains a need for more objective approaches to evidential interpretation, along with rigorously validated procedures for handling, storage and analysis. Chemometrics has been recognised as a powerful tool within forensic science for interpretation and optimisation of analytical procedures. However, careful consideration must be given to factors such as sampling, validation and underpinning study design. This tutorial review aims to provide an accessible overview of chemometric methods within the context of forensic science. The review begins with an overview of selected chemometric techniques, followed by a broad review of studies demonstrating the utility of chemometrics across various forensic disciplines. The tutorial review ends with the discussion of the challenges and emerging trends in this rapidly growing field.
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A forensic international market survey of condom lubricants and personal hygiene products using ATR-FTIR coupled to chemometricsBurnier, Céline; Coulson, Sally; Massonnet, Geneviève; Pitts, Kari; Sauzier, Georgina ; Lewis, Simon (2021)Condom residues may be encountered in forensic investigations as traces in sexual assault or rape cases. Casework studies have shown the value of distinguishing condom residues from other types of personal products used ...
In situ examination of handwritten blue ballpoint inks using video spectral comparison with chemometricsSauzier, Georgina; McGinn, J.; Trubshoe, T.; Lewis, Simon (2019)Video spectral comparator (VSC®) workstations are routinely used for visual examinations of pen inks on handwritten documents. Current VSC® models also permit spectral acquisition, which can be combined with chemometric ...
Horrocks, Aaron ; DeTata, D.; Pitts, K.; Lewis, Simon (2023)Chlorates and perchlorates, inorganic salts known for their potent oxidizing properties, find utility in various products such as pyrotechnics, matches, and disinfectants. Their chemical properties also make them suitable ...