Ms. Pimsiri is a Sakharov fellow, a Thai human rights defender, and a pro-democracy activist with more than 15 years of experience advancing civil and political rights, including LGBTQ+ equality. We are gravely concerned that Ms. Pimsiri is on criminal trial in Black Case No. For peacefully calling for democratic reforms, including reform of the Thai monarchy, Ms. Pimsiri now faces the prospect of 15 years’ imprisonment—a penalty equivalent to that for manslaughter under Thai law. Ms. Pimsiri is an honest defender of the freedom of thought. As a Sakharov fellow, she has served as a “multiplier” by sharing her knowledge and supporting others in her field and beyond.