> international courts...
Ha Ha Ha Ha Ha Ha Ha!!
there is not such thing. 
the only way to bring the chinese socialist govt to court would be after invading and defeating them. 
"international law" is a hilarious joke that only a fool believes. 
civilized nations abide by civilized rules and practices, china, iran pah=kee-stahn, poo-land, et al do as they please, and will continue to doo so until civilized nations finally get sick of their shit and go to war, delivering a real defeat and taking their leaders into custody for an appointment with the end of a rope (see the end of WW2) 
in this era of "limited war", such can never happen again, so the bastards have no fear of justice.