A general observation now, about a good source for Thai laws.
A decade or so ago the dean of the law faculty at Thammasath University pointed me to krisdika.go.th, the website of the Council of State, aka the Cabinet. This site had a database of Thai laws and Royal decrees that was easy to search, even for me who do not read Thai, and was always updated with the latest amendments. Moreover, it had also a repository of excellent English translations of the most important laws.
With the advent of the incumbent Thai government, krisdika.go.th now redirects to ocs.go.th/council-of-state/#/intro-page, which I find more complicated to navigate, but the texts of Thai laws are all there. The good English translations are sadly gone and are replaced with what I think are second rate machine translations.