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NCJRS Abstract

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NCJ Number: 229276 Find in a Library
Title: Illegal Route Estimation of the Seized Illicit Drug, Methamphetamine, by the Comparison of Striation Marks on Plastic Packaging Films
Journal: Journal of Forensic Sciences  Volume:54  Issue:6  Dated:November 2009  Pages:1341-1348
Author(s): Ritsuko Sugita, Ph.D.; Kaoru Sasagawa, B.Sc.; Shinichi Suzuki, Ph.D.
Date Published: November 2009
Annotation: This paper describes a number of alternative methods of estimating the illegal route of seized methamphetamine, with an emphasis on the method that compares the striation lines of polymer sheet layers from packaging using a polarized light method.
Abstract: Using this method, the existence of matched layers between confiscated packages from different regions over a 1,000 km distance showed an obvious relationship between the methamphetamine that had been illegally transferred on the open sea (region I), unloaded at region 2, and delivered to the mainland (region 3). This smuggling route was presumed to be controlled by organized crime in Japan. After a few months of investigation by the police, this route of illegal import and delivery was identified and inactivated. Polymer sheet layers of 29 individual packages used for packaging methamphetamine were retrieved from the 3 different regions in Japan. Each region was located over a 1,000- km distance and included the public sea. In Japan, there are many different colorless polyethylene (PE) and polyethylene/polyvinylacetate (PE/EVA) manufacturing companies. Therefore, there is a large supply of PE and PE/EVA films available, and the roller that is used to prepare the film is replaced frequently. A comparison of striation lines of polymer sheet layers and heat sealer marks was used to determine whether there was a common origin. Although there were no polymer sheet layers that showed similar striation lines in packages from all three regions, there were some polymer sheet layers that showed similar striation lines retrieved from regions 1 and 2 and regions 2 and 3. 5 tables, 9 figures, and 13 references
Main Term(s): Criminology
Index Term(s): Drug smuggling; Foreign drug law enforcement; Geographic distribution of crime; Investigative techniques; Japan; Methamphetamines
Publisher: http://www.interscience.wiley.com/journal/jfo 
Page Count: 8
Format: Article
Type: Case Study; Report (Study/Research)
Language: English
Country: United States of America
To cite this abstract, use the following link:
http://www.ncjrs.gov/App/publications/abstract.aspx?ID=251303

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