Which document is considered a primary source of jurisdiction?

The correct answer reflects the understanding that international law serves as a fundamental framework guiding interactions between sovereign states and influencing jurisdiction across borders. International law is composed of treaties, agreements, and conventions that establish a set of legal standards and norms recognized by the global community. This body of law can dictate jurisdictional matters, especially in cases involving multiple countries or international entities, thereby serving as a primary source of jurisdiction on a global scale.

While state statutes, local ordinances, and non-governmental regulations all play crucial roles in defining jurisdiction within particular legal frameworks (such as state or municipal levels), they do not carry the broad authority that international law does in matters that transcend national boundaries. International law has the capacity to inform and sometimes override national laws in specific contexts, particularly those involving treaties or human rights considerations, hence its classification as a primary source of jurisdiction.