UN independent experts said that they are "dismayed" at the use of the royal defamation law to dissolve the Move Forward Party (MFP), which won the largest number of seats in the 2023 general election, and ban its leaders from politics. They noted that the royal defamation law is outdated and inconsistent with international law, and efforts to "peacefully reform" it should be supported, not thwarted.

A letter from several UN bodies was released on 4 July, raising concerns about the prosecution and detention of 15-year-old activist Thanalop Phalanchai for royal defamation and asking for explanations from the Thai government.