Definition
An instance court is the branch of the English Court of Admiralty exercising general admiralty jurisdiction over ordinary maritime matters — disputes involving contracts, torts, and other civil claims arising at sea. It is distinguished from the Prize Court, which handles the separate and specialized jurisdiction over ships and cargo captured as prizes of war. The instance court handled the day-to-day business of admiralty: salvage, collision, seamen's wages, bottomry bonds, and similar maritime causes.
The term reflects a division internal to the English admiralty system. Both the instance court and the prize court derived authority from the same institutional body — the Court of Admiralty — but they exercised distinct jurisdictions, operated under different procedural rules, and at times were treated in English legal writing as effectively separate tribunals. Burrill notes this ambiguity directly, observing that while some English authorities treated them as "perfectly distinct tribunals," they are more accurately understood as "different branches of jurisdiction of the same court."
In the United States, the term has no formal application. American admiralty courts — the federal district courts sitting in admiralty — exercise a unified jurisdiction that combines what English law separated into instance and prize functions. The term appears in American legal sources only for comparative or explanatory purposes.
Common Confusion
Instance court is sometimes read as referring to a court of "first instance" — meaning a trial court as opposed to an appellate court. The two concepts are unrelated. A court of first instance is any court exercising original (as opposed to appellate) jurisdiction. An instance court is specifically the non-prize branch of the English admiralty system. The similarity in language has caused occasional confusion in historical legal texts and remains a trap for researchers encountering the term in admiralty sources.
Why It Matters in Research
Researchers working in historical admiralty law must understand this division to navigate English sources correctly. Pre-Judicature Acts English admiralty scholarship and case reporters frequently distinguish instance proceedings from prize proceedings, and the procedural rules governing each differed in meaningful ways. A case decided in the instance court cannot be assumed to follow the same procedural posture as one in the prize court, and vice versa.
The structural distinction collapsed in England with the Judicature Acts of 1873–1875, which transferred admiralty jurisdiction to the Probate, Divorce and Admiralty Division of the newly constituted High Court of Justice. After that point, references to the "instance court" as a functioning tribunal largely disappear from English sources. Researchers encountering the term should treat it as a marker of pre-Judicature era English admiralty practice.
In American sources, the term's appearance almost always signals borrowed English framing. American admiralty jurisdiction was never divided in this way. When American treatise writers or courts use "instance court," they are typically explaining English doctrine or history, not describing American practice. Attributing instance-court limitations or rules to American admiralty courts based on such references would be an error.
The prize/instance distinction also has implications for choice of sources. Prize court decisions in England were separately reported and drew on the law of nations rather than purely domestic admiralty doctrine. Instance court decisions applied the civil law tradition as received into English admiralty practice. These are different bodies of authority and should not be conflated.
Historical Dictionary Support
Black's, Burrill's, and Bouvier's converge on the same core definition: the instance court is the admiralty jurisdiction over all matters except prizes, and it has no proper American equivalent. All three sources flag the American inapplicability explicitly — a notable consensus that signals the term was already at risk of misuse by the time these dictionaries were compiled.
Burrill adds the most jurisprudential nuance, citing Kent's Commentaries for the proposition that the instance and prize courts are better understood as branches of a single court rather than distinct tribunals — a distinction that matters for questions of judicial authority and appealability. Bouvier anchors the historical endpoint cleanly, noting that the Judicature Acts transferred admiralty jurisdiction to the High Court of Justice, effectively ending the instance court as a distinct entity.
None of the three sources provide significant treatment of instance court procedure or the specific subject-matter scope of its jurisdiction beyond the prize exclusion. Researchers needing that level of detail should consult specialized admiralty treatises such as Kent's Commentaries on American Law or historical English admiralty practice manuals.
Jurisdictional Note
The instance court is an English admiralty concept with no structural equivalent in American law. Federal district courts in the United States exercise admiralty jurisdiction as a unified whole under Article III and the applicable federal statutes. Prize jurisdiction in the United States is similarly vested in federal courts without a separate prize court division.