Court Systems and Jurisdiction: Three Gates Before Filing
Court Systems and Jurisdiction asks whether the chosen court can hear the dispute at all: does it have power over the subject matter, power over the parties, and is it a proper place to file? The CLE Entrance Exam favors scenarios with exactly one defective element - a same-state party spoiling diversity, a defendant with no contacts with the forum, or a venue statute that points to a different district. Learn the gates separately, then run the scenario through them in order.
The three gates
- Subject-matter jurisdiction is authority over the type of case. A court without it produces a void judgment, and the defect can be raised at any time.
- Personal jurisdiction is authority over the person or property. Individuals are generally suable at domicile; corporations at place of incorporation and principal place of business; otherwise minimum contacts plus fair play and substantial justice apply.
- Venue is the proper district inside a system that already has jurisdiction - typically where defendants reside or where the events occurred. Venue is waivable; subject-matter jurisdiction is not.
How the systems are built
State systems typically run limited-jurisdiction courts (small claims, municipal), general-jurisdiction trial courts, intermediate appellate courts, and a court of last resort with discretionary review. The federal system runs district courts, thirteen courts of appeals, and the Supreme Court, plus specialty courts such as bankruptcy and tax.
Worked example
A plaintiff domiciled in State B sues a defendant domiciled in State A in federal court sitting in State B for breach of contract, seeking $90,000. Diversity exists: no plaintiff shares citizenship with any defendant, and $90,000 exceeds the $75,000 amount-in-controversy threshold. Federal jurisdiction exists but is not exclusive, so the plaintiff may generally choose state court instead. If the plaintiff joined a third defendant domiciled in State B, complete diversity would collapse and the federal court could not hear the case on diversity grounds. Interest and costs do not count toward the amount in controversy; the sum must be recoverable in good faith.
Traps that cost marks
Watch for venue described as a jurisdictional defect, one same-state party hidden among many diverse ones, amount figures that include interest, and federal-question arguments that rely on a defense rather than the plaintiff's own claim.