On January 13, 2021, the Investigation Police Agency underthe Public Security Department of Nghe An received citizens' denunciations on Duc’s collecting and providing other persons' personal information to a reactionary organisation called "Chinh phu quoc gia Viet Nam lam thoi" (ProvisionalNational Government of Vietnam).
The police arrested Duc on January 21, 2021 and conducted a search of his private house, during which they found a list of citizens in Nam Dan district whose personal information was provided to Ho Thi Xuan Huong, a resident in Kon Lor 2 village, Dak Ro Wa commune, Kon Tum city of Kon Tum district via Facebook to serve a referendum to elect Dao Minh Quan as the president of the so-called "De tam Viet Nam cong hoa" (Third Republic of Vietnam).
Investigation showed that between June 2020 and January 2021, through Facebook, Duccontacted Huong and Ngo Cong Tru from Phu Yen province, both of whom are members of theUS-based Provisional National Government of Vietnam that is led by DaoMinh Quan."
Following Huong and Tru’s instruction, Duc gathered information of 36 citizens in NamDan district and sent to Huong to register for the referendum.
Duc then wrote a letter volunteering to join the Provisional National Government of Vietnam with an aim to overthrow the leadership roleof the Communist Party of Vietnam and destroy the Socialist Republic ofVietnam.
In addition, Duc also posted, shared and sent through Facebookmany videos and articles with contents distorting and opposing the Party and State ofVietnam./.