What does it mean when no other court has jurisdiction over a matter?

The concept of a court having no other jurisdiction over a matter is best understood through the term "exclusive jurisdiction." This means that a particular court is the only entity that has the authority to adjudicate a specific type of case. When a court possesses exclusive jurisdiction, it has the sole power to hear and decide on the issues presented in that case, preempting the involvement of any other court.

In the context of jurisdiction, final jurisdiction refers to the last instance in which a decision can be appealed, while concurrent jurisdiction allows multiple courts to have the authority to hear the same case. Residual jurisdiction typically refers to jurisdiction that remains after certain jurisdictions have been accounted for or delineated. Therefore, it is the notion of exclusivity that clearly defines why no other court may intervene or have authority over a given legal matter. Understanding this concept is essential in grasping how legal proceedings are structured within the judicial system.