$372$ points

In $2019,$ Congressman Olive Tree of Ambrosia was in Genovia to discuss trade relationships between the two countries. While driving back to his hotel after dinner one night, Congressman Tree made a turn on the wrong side of the road and struck a motorcyclist head$-$on$.$ The motorcyclist survived but sustained such severe injuries that he would be in a wheelchair for the rest of his life. Police officials in Genovia tried to press criminal charges on Congressman Tree but he managed to return to Ambrosia without having to stand trial.

Which of the following international laws made it possible for Congressman Tree to do so$?$

Clause of Confidentiality

Rule of Law

Diplomatic Immunity

Foreign Corrupt Practices Act

Process of Discovery