Lee Ming-che is a Taiwanese pro-democracy activist, detained by Chinese authorities in late March 2017. After Lee entered the domain of China from Macao, he lost the ability to directly contact his family. There have been calls for his immediate release by human rights activistsaround the world. These include Hong Kong activist Joshua Wong, who joined Taiwan's New Power PartyExecutive ChairmanHuang Kuo-chang, and former Sunflower Movement leaders to condemn Lee’s continued detention. Lee is a former worker for the Democratic Progressive Party and NGO employee, and the incident has led to friction between security institutions in Taiwan and China. A representative of the Chinese government has stated that Lee is under investigation on suspicion of harming national security. Ma Xiaoguang, a spokesman for Beijing's Taiwan Affairs Office, has said in a press conference that Lee is "currently in good physical condition". Lee’s wife, Lee Ching-yu, called on Beijing to immediately release him, and to clarify the charges brought against him and ensure his rights. Lee has previously used social media to promote the success of Taiwan's democracy to 'at least 100 people' in communist China. On this occasion, he had gone to China to arrange for his mother-in-law's medical treatment. In an effort to find her husband, Lee Ching-yu booked a flight from Taiwan to China on 10 April, however she has been banned from entering China by its Ministry of Public Security. On 13 April, an editorial in Taiwan News asserted that this is the type of situation that should be covered by the “Cross-Strait Joint Crime-Fighting and Judicial Mutual Assistance Agreement”. On September 2017, Lee Ming-che pleaded guilty to "subverting state power" in a court in Hunan. His wife and supporters say his confession was forced. Since his conviction he has been incarcerated in Chishan Prison. In 2020 the Rescue Lee Ming-che Team held an exhibition in Taipei which featured 365 letters written to Lee Ming-che, the Team also organized a two week long lecture series on Lee’s case and the general human rights situation in China. The letter writing campaign was a response to Lee being denied the right to write/receive letters and telephone calls which violates both the Prison Law of the People’s Republic of China and the UN Standard Minimum Rules for the Treatment of Prisoners.