[1] He is known for advocating farmers' rights, speaking out against the Tatmadaw, and handling politically sensitive cases against the Burmese military generals.

[7][8] In December 2014, Nay Myo Zin was arrested for protesting in front of the Chinese embassy in Yangon [zh], seeking justice for the killing of farmer Khin Win by the police at the Letpadaung Copper Mine site.

[10] Nay Myo Zin was arrested in April 2019 for criticizing the Burmese military's role in politics and calling for constitutional reform.

[14][15] On June 7, outside the court, over 50 supporters of Nay Myo Zin wore white outfits featuring his photo and a written message opposing the legal charges filed by the military.

During the court release, approximately 50 police officers were deployed to provide security and oversee the transport of Nay Myo Zin in the prison van.

[17] For his outspoken criticism of top Burmese military leaders, Nay Myo Zin was named in The Irrawaddy's article "Myanmar's Movers and Shakers of 2019".

[21] In 2024, Nay Myo Zin was appointed as the director of the Administrative Committee for Righteous Military Personnel by the Karenni State Interim Executive Council.