Therefore, it was concluded that geographic profiling might be improved by using the Shortest route distance when calculating the probability distribution for offenders committing crimes in a wide area that includes many edges, such as rivers, railroads, and mountains, as well as paths such as bridges and railroad crossings. The number of indistinguishable pairs among the 13 sheet glass samples manufactured using the same production line was limited to 12 of 78 by comparison of only Fe concentrations measured using the method developed herein, demonstrating the potential contribution of Fe analysis to enhanced evidence collection.
The isomers could be clearly differentiated by their IR spectra. Illegal distribution of cannabis products, such as cannabis-infused foods and e-liquids, are increasing in Japan.
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The main component of cannabis is tetrahydrocannabinol THC. Recently, the crime of cultivating cannabis has occurred frequently in Japan. Illegal cultivation is difficult to discover because there are cases in which cannabis is cultivated secretly in a room in apartments, etc.
Cannabis is a plant that emits unique odors. Detection of the odor constituents can provide a breakthrough for the criminal investigation of cannabis cultivation. The purpose of this study was to identify cannabis products and utilize them for the criminal investigation of cannabis cultivation. Cannabis plants were cultivated from seeds and analyzed using both solid-phase microextraction SPME and solvent extraction. Fifty kinds of volatile components were detected by SPME and 21 kinds of refractory components were detected by solvent extraction in fresh cannabis plants.
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We found that terpenes were detected more strongly in cannabis buds than in cannabis leaves. Furthermore, sesquiterpenes were strongly detected from cannabis leaves and monoterpenes were strongly detected from cannabis buds. Additionally, THC, cannabichromene, cannabigerol and tetrahydrocannabivarin known as cannabinoids, were detected in all the samples. For the identification of cannabis products, 7 kinds of terpenes and 4 kinds of cannabinoids are promising combinations. Additionally, these terpenes may be useful in the criminal investigation of cannabis cultivation. Already have an account?
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Use your name:. The theoretical model developed by the authors are validated against experimental data and determine the suitability for application to processes in chemical industry. The values and results obtained for the sintered MgO samples were investigated and analyzed by the authors.
Japanese Journal of Forensic Science and Technology
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Volume 22 (2014): Issue 3-4 (Dec 2014)
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