The Recovery of Latent Fingermarks from Evidence Exposed to Ionizing Radiation
| Autor: | Andrew Parkinson, Chris Lennard, Michael Colella, Tegan Evans, Claude Roux |
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| Rok vydání: | 2009 |
| Předmět: |
Paper
Materials science Surface Properties Chemical interaction Pathology and Forensic Medicine Ionizing radiation Radiation Ionizing Genetics Humans Cyanoacrylates Cobalt Radioisotopes Dermatoglyphics Fluorescent Dyes Aza Compounds Rhodamines Radiochemistry Ninhydrin Dose-Response Relationship Radiation Iridium Radioisotopes Cesium Radioisotopes Indans Radiolysis Polystyrenes Indicators and Reagents Glass Polyethylenes Aluminum Nuclear chemistry |
| Zdroj: | Journal of Forensic Sciences. 54:583-590 |
| ISSN: | 1556-4029 0022-1198 |
| DOI: | 10.1111/j.1556-4029.2009.01016.x |
| Popis: | Continual reports of illicit trafficking incidents involving radioactive materials have prompted authorities to consider the likelihood of forensic evidence being exposed to radiation. In this study, we investigated the ability to recover latent fingermark evidence from a variety of substrates that were exposed to ionizing radiation. Fingermarks deposited on common surfaces, including aluminum, glass, office paper, and plastic, were exposed to doses ranging from 1 to 1000 kGy, in an effort to simulate realistic situations where evidence is exposed to significant doses of radiation from sources used in a criminal act. The fingermarks were processed using routine fingermark detection techniques. With the exception of glass and aluminum substrates, radiolysis had a considerable effect on the quality of the developed fingermarks. The damage to ridge characteristics can, in part, be attributed to chemical interactions between the substrate and the components of the fingermark secretions that react with the detection reagents. |
| Databáze: | OpenAIRE |
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