An amino acid model for latent fingerprintson porous surfaces
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Lothar Schwarz [1]
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[1] KT 41-2 Research, Development and Testing of Fingerprint DetectionMethods, Kriminaltechnisches Institut des Bundeskriminalamts
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- Localización: Journal of forensic sciences, ISSN-e 1556-4029, ISSN 0022-1198, Vol. 54, Nº. 6, 2009, págs. 1323-1326
- Idioma: inglés
- Texto completo no disponible (Saber más ...)
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Resumen
Analytical standards are needed in latent fingerprint detection for research and development as well as for quality control in routinework because normal fingerprints are too varied for comparison studies and tests. One way is to create latent fingerprints. For the amino acid sensi-tive detection method this can be achieved by coating test items with an amino acid solution using a modified commercial office bubble jet printer.Besides low costs, fast and easy preparation, the main advantage of a bubble jet printer is that the amino acid loading per area on the test item canbe calculated by weighing the cartridge on a balance. This opens the possibility to determine the deviation for every printing series. The reproducibil-ity of prints in a printing series made by one cartridge has a deviation of 2–16% and of prints made by different cartridges 20–25%
