Illegal route estimation of the seized illicit drug, methamphetamine, by the comparison of striation marks on plastic packaging films
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[1] National Research Institute of Police Science
National Research Institute of Police Science
Japón
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- Localización: Journal of forensic sciences, ISSN-e 1556-4029, ISSN 0022-1198, Vol. 54, Nº. 6, 2009, págs. 1341-1348
- Idioma: inglés
- Texto completo no disponible (Saber más ...)
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Resumen
In Japan, the most common illicit drug is methamphetamine. It is possible to trace the origin of this drug by analyzing its organicand inorganic impurities and ⁄ or byproducts using several methods, such as GC, GC ⁄ MS, and inductively coupled plasma-mass spectrometry (ICP-MS). As reported here, one other method includes comparison of the striation lines of polymer sheet layers from packaging using a polarized lightmethod. Other alternative methods include analyzing the heat sealer pattern, layer thickness surface characteristics, and ⁄ or components of polymersheet layers using infrared spectroscopy. Several of these alternative methods were used to analyze the origins of 29 packages confiscated from threeregions over a 1000 km distance in Japan. Results indicated that packages seized from different regions had some polymer sheet layers which con-tained striation lines and heat sealer patterns that were similar
