This article discusses the drug laws in Japan and the consequences of being caught with drugs, including types of drugs prohibited, penalties for possession and use, penalties for selling and trafficking, how drug offenses are prosecuted, how to avoid being caught with drugs, and what to do if you are caught with drugs. Possession or use of any type of illegal drug is a criminal offense punishable by up to 5 years imprisonment and/or a fine up to ¥5 million ($46,000 USD). Selling or trafficking drugs can lead to much harsher sentences ranging from 10 years in prison to life imprisonment and/or fines up to ¥10 million ($92,000 USD). It is important for anyone traveling or living in Japan understand their country's laws regarding illicit substances so they know how best handle such situations accordingly.