相关规则
China
Practice Relating to Rule 128. Release and Return of Persons Deprived of Their Liberty
Section C. Exchange of prisoners
In 1995, during a debate in the UN Security Council on the situation in Tajikistan and along the Tajik-Afghan border, China welcomed the agreements on the exchange of detainees and prisoners of war. 
China, Statement before the UN Security Council, UN Doc. S/PV.3544, 16 June 1995, p. 5.