The cannabis plant has fascinated many civilizations, societies, and individuals through the centuries with its unique properties, and many have learned how to benefit from these, finding a variety of therapeutic and industrial uses of the plant that, in turn, enhanced domestic economies worldwide. In Thailand, cannabis plants and their derivatives have been used since ancient times as treatment for many diseases, and the plant forms a key ingredient in many Thai traditional medicinal remedies. However, over the past few decades, cannabis usage was seen to change in a way that became incrementally more abusive, resulting in outright prohibition in almost all countries. Thailand was no exception, and in 1979 the Thai government officially enacted the Narcotics Act forbidding the use of cannabis and listing cannabis plants and their derivatives—most notably marijuana (cannabis with psychoactive properties) and hemp (cannabis with limited or no psychoactive properties)—as category 5 narcotics (i.e., prohibited substances). Despite these restrictions, many Thais continued to use cannabis illegally, and some urged the government to legalize personal and commercial use of cannabis plants and their derivatives. Eventually, some in the Thai government agreed that it was time to consider steps toward legalization, As a result, the government has been taking action to delist cannabis plants from the list of prohibited narcotics since 2018, when a regulation allowed the cultivation of hemp for industrial and non-commercial purposes, such as household cooking and research and development. The next significant step came in February 2019, when the Narcotics Act (No. 7) was amended, legalizing medical marijuana within certain limitations. In national elections the following month, the Bhumjaithai political party, whose election campaign included a pledge to decriminalize and legalize cannabis plants, won substantial support in parts of the country and chose to join the coalition government, with the Bhumjaithai party