In the late 1930s, a movement to ban the drug marijuana began to gather force, resulting in the eventual banning of the cultivation.

Caption :Tijuana, Mexico: A police officer takes photos at a cannabis plantation raided in the Valle de las Palmas. Police found six separate cannabis plantations hidden on the hills.

In Japan the number of arrests for domestic cannabis cultivation increased by 17% in 2009, whereas the number of arrests for importing fell by almost half.