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Cannabis in Japan has been illegal since 1948. Use and possession are punishable by up to five years' imprisonment and a fine. Cultivation, sale, and transport are punishable by up to 7 to 10 years' imprisonment and a fine.

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Hemp, called "asa" in the Japanese language, is cultivated chiefly in the provinces or districts of Hiroshima, Tochigi, Shimane, Iwate, and Aidzu, and to a less extent in Hokushu (Hokkaido) in the north and Kiushu in the south. It is cultivated chiefly in the mountain valleys, or in the north on the interior plains, where it is too cool for cotton and rice and where it is drier than on the coastal plain. That grown in Hiroshima, in the south, is tall, with a rather coarse fiber; that in Tochigi, the principal hemp-producing province, is shorter, 5 to 7 feet high, with the best and finest fiber, and in Hokushu it is still shorter.


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Cannabis has been cultivated in Japan since the pre-Neolithic period, for its fibres and as a food source, and possibly as a psychoactive material. While archaeological evidence supports the use of cannabis as a textile (hemp), there is no conclusive archaeological evidence for its medicinal use.

The Japanese term for hemp, taima, is derived from the Chinese term ta mà.

The Taima Hakubutsukan was established in Nasu, Tochigi Prefecture, in 2001, by cannabis historian Junichi Takayasu.


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Japan: Record 1,446 detected for cannabis


A record 1,446 people were detected possessing, using or trading in cannabis in the first half of this year, up 21.3 percent from a year earlier, the National Police Agency said Thursday. Among them, 914, or 63.2%, were in their 20s or younger, indicating cannabis use is spreading among young people.

It is notable that 104 people were detected cultivating cannabis in the January-June period, up 40.5%, according to the NPA. Meanwhile, 5,384 people were detected over stimulant drugs in the reporting period, down 13.1%.



  • Japan adopts the Cannabis Control Law


    Establishing a licensing system for dealers, and punishments for unlicensed use or sale.


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2019-05-09 23:16:53

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