Customary law and the principles commonly used to establish or to challenge a State’s jurisdiction over a particular matter. Territorial Principle, the Effects Doctrine, the Active Personality Principle, the Passive Personality Principle, the Protective Principle, and the Universality Principle. Application of the law to the facts of Meng Wangzhou’s case to see whether the case itself constitutes an abuse of process if the US has acted illegally under international law in exercising jurisdiction in the case through the alleged connection of the US banking system. How public international law is regulated by the international community and what States can do if a State imposes unilateral sanctions or exercises jurisdiction illegally. Should Canada be complicit in helping the US when the US exercise of jurisdiction is illegal under international law and further questions the approach the US has taken in bringing this case.