Fourier Transform Infrared Reflectance Spectra of Latent Fingerprints: A Biometric Gauge for the Age of an Individual*

Hemmila, B A April; McGill, Jim; Ritter, David J.

doi:10.1111/j.1556-4029.2007.00649.x

Cited by 47 publications

(50 citation statements)

References 10 publications

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“…In some instances these enhancement techniques may provide information about personal habits, as well as develop ridge detail [4,5]. Novel applications of analytical techniques, including micro-X-ray fluorescence, Fourier transform infrared spectroscopy and time-of-flight secondary ion mass spectrometry are also being used in the visualisation of latent fingerprints and to study their behaviour [7,8,9,10]. Prior knowledge of the chemical composition of latent fingerprint residue, and its behaviour after deposition on a surface, would aid the identification of target components, and in particular those which are common to all fingerprints, to allow for a universal reagent or technique to be developed.…”

Section: Introductionmentioning

confidence: 99%

Variation in amino acid and lipid composition of latent fingerprints

Croxton

Baron

Butler

et al. 2010

Forensic Science International

200

210

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The enhancement of latent fingerprints, both at the crime scene and in the laboratory using an array of chemical, physical and optical techniques, permits their use for identification. Despite the plethora of techniques available, there are occasions when latent fingerprints are not successfully enhanced. An understanding of latent fingerprint chemistry and behaviour will aid the improvement of current techniques and the development of novel ones. In this study the amino acid and fatty acid content of 'real' latent fingerprints collected on a non-porous surface was analysed by gas chromatography-mass spectrometry.Squalene was also quantified in addition. Hexadecanoic acid, octadecanoic acid and cis-9-octadecenoic acid were the most abundant fatty acids in all samples. There was, however, wide variation in the relative amounts of each fatty acid in each sample. It was clearly demonstrated that touching sebum-rich areas of the face immediately prior to fingerprint deposition resulted in a significant increase in the amount of fatty acids and squalene deposited in the resulting 'groomed' fingerprints. Serine was the most abundant amino acid identified followed by glycine, alanine and aspartic acid. The significant quantitative differences between the 'natural' and 'groomed' fingerprint samples seen for fatty acids were not observed in the case of the amino acids. This study demonstrates the variation in latent fingerprint composition between individuals and the impact of the sampling protocol on the quantitative analysis of fingerprints.

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Section: Introductionmentioning

confidence: 99%

Variation in amino acid and lipid composition of latent fingerprints

Croxton

Baron

Butler

et al. 2010

Forensic Science International

200

210

View full text Add to dashboard Cite

show abstract

“…Studies have shown that depth of penetration of fingermarks varies with types of paper, with a good correlation between penetration depth and quality of chemically developed prints [11][12][13][14][15]. Establishing the depth of penetration of prints into surfaces, as well as order of layers in, for instance, overprinting with text or images, can provide considerable assistance to crime-scene investigations by providing an insight into the history of documents for forensic studies.…”

Section: Introductionmentioning

confidence: 99%

Determining the order of deposition of natural latent fingerprints and laser printed ink using chemical mapping with secondary ion mass spectrometry

2013

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, "Determining the order of deposition of natural latent fingerprints and laser printed ink using chemical mapping with secondary ion mass spectrometry" Science and Justice 53 (2003) AbstractTime-of-flight secondary ion mass spectrometry (ToF-SIMS) chemical mapping was used to investigate the order of deposition of natural latent fingerprints and laser printed ink onpaper. This feasibility study shows that sodium, potassium and C 3 H 5 positive ions were particularly abundant endogenous components of the natural fingerprints and also present in the paper examined, but were mostly absent in the laser printed ink. Mapping of these ions enables the observation of friction ridges from latent prints on the ink surface, only when a fingerprint was deposited above the layer of ink. As a demonstration of proof of concept, blind testing of 21 samples from three donors resulted in a 100% success rate. The sensitivity of this technique was investigated within this trial through the examination of up to fifth depletion fingerprints and ageing of up to 28 days. Migration of fingerprint and paper components to the ink surface, although observed with increased ageing time, was not found to compromise determination of the deposition sequence.Keywords: Time-of-flight secondary ion mass spectrometry (ToF-SIMS); fingerprints; laser printing; paper; questioned documents; forensic science N Attard Montalto, JJ Ojeda and BJ Jones, "Determining the order of deposition of natural latent fingerprints and laser printed ink using chemical mapping with secondary ion mass spectrometry" Science and Justice 53 (2003) 2 This is an Archive Version. The definitive version is available at www.sciencedirect.com and via http://dx

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“…A thorough chemical analysis of FP residues may even reveal if the person habitually inhales or ingests certain chemical substances [33,34]. In addition, it is quite likely, that the composition of latent FPs change as a person ages [35]. Latent FP residue composed primarily of lipids such as squalene, fatty acids, and cholesterol adheres to a large number of substances.…”

Section: Resultsmentioning

confidence: 98%