Thailand's military government is increasing efforts to stop people insulting or criticising the royal family.
The law is designed to prevent criticism of the monarchy.
But critics say it is being used to stifle dissent.
Over the past three years, there have been more than 100 cases of people being charged or convicted under tough laws that carry jail sentences of up to 15 years.
Al Jazeera's Wayne Hay reports from Khon Kaen, Thailand.