Australian immigration law

You can sue, but unless this person enters Australia, or China is willing to extradite (generally it is not an international felony, and the Australian government cannot request extradition), even if the trial is successful, there is no way to take any effective law enforcement.

Just like activists in many circles sued China leaders in the United States and Europe, some national courts accepted it in a big way, while others directly rejected it. In any case, this is just a farce and has no practical significance.

First of all, the court has a question of accepting territorial jurisdiction. Without special reasons, Australian courts will generally not accept your overseas injury cases. In particular, I feel that the case you told me happened overseas before you became an Australian resident, that is, it belongs to two overseas people who happened overseas and has no direct relationship with Australia. Just like bigamy in Australia is a criminal case, but if an Arab mm comes to Australia to sue her husband for marrying four wives in Arabia, Australian law has no jurisdiction and there will be no court to accept the case.