You know that China has for a long time has been secretly kidnapping people in other countries:
https://foreignpolicy.com/2018/03/29/the-disappeared-china-r...
https://foreignpolicy.com/2018/03/29/the-disappeared-china-r...
Their main claim to legality is sufficiently questionable that they legislated to deny officers of the International Criminal Court entry to the USA:
https://en.wikipedia.org/wiki/United_States_and_the_Internat...