If you have been blacklisted in Thailand because of a marijuana case, then this article is for you. The blacklist in Thailand is a little-known area of Thailand’s criminal and immigration laws, especially now that there were significant changes made in 2021-2022. The decriminalizing of marijuana (also known as pot, ganja, or cannabis) in Thailand has made news across the globe, and for good reason. As many of you reading this article know, even simple possession of marijuana in Thailand leads to being blacklisted for 100 years (in most cases). Many of you who received and retained the paperwork from your marijuana case in Thailand would have noticed being classed according to Section 12(7). Section 12(7) is a catch-all classification for those who are persona non grata in Thailand. This includes foreigners who have had marijuana cases in Thailand.