Jurisdictional fact¶
An objective statutory criterion whose actual satisfaction conditions official power or a mandated outcome and is judicially determinable when challenged.
Core Idea¶
A jurisdictional fact in the cited common-law settings is an actual factual or mixed fact-and-law condition that a statute makes decisive for an official power or a required outcome. Whether a statute creates that kind of condition depends on interpreting it. If the official action is properly challenged, a court can determine whether the fact exists instead of treating the administrator's opinion as legally conclusive. The fact can have this role before anyone brings a case.[ref-0b44420b7cf7][ref-f08a22d2ac10]
The condition can work in either direction. Actual illegal-entrant status conditioned detention and removal power in Khawaja/Khera. In Enfield, the non-complying development classification triggered a prohibition on provisional consent without specified concurrence. The second condition required an outcome rather than merely allowing discretion.[ref-0b44420b7cf7][ref-f08a22d2ac10]
Use Within the Domain¶
In the UK immigration case, Lord Fraser held that a reasonable official belief alone did not establish the actual illegal-entrant status needed for detention and summary removal under the statute as construed. The two appeals had different results on their evidence.[^ref-0b44420b7cf7]
In the South Australian planning case, the High Court treated the special-industry and non-complying-development classification as a judicially determinable condition of the consent prohibition. The trial court had assessed evidence; the High Court sent remaining factual appeal grounds back rather than settling every factual issue itself.[^ref-f08a22d2ac10]
Jurisdiction names an institution's broader competence, Ultimate Fact a factfinder's conclusion, and Judicial Deference a court's review posture. None includes the actual statutory criterion, conditioned power or result, and judicial determinability together.
Clarity¶
Start with the statutory consequence: which power is available, or which outcome is required or barred? Then identify the factual or mixed criterion said to trigger it. Ask whether the statute makes the actual fact decisive or instead makes the authority's opinion the condition. An important fact is not automatically a jurisdictional fact.[ref-0b44420b7cf7][ref-f08a22d2ac10]
Manages Complexity¶
Keep three questions separate: what the statute means, whether the criterion is satisfied, and what follows for the official act. Courts may address them in different ways under different statutes and procedures. The label does not itself set one burden of proof, degree of weight for an administrator's findings, or remedy.[ref-0b44420b7cf7][ref-f08a22d2ac10]
Abstract Reasoning¶
Ask: If the actual criterion is absent, can the act still have the same statutory footing? A reasonable but mistaken belief about illegal-entrant status did not by itself supply the UK precedent condition. In the Australian case, an administrator's contrary view could not remove a prohibition that followed from the actual statutory classification. The remedy and remaining factual disputes still need separate analysis.[ref-0b44420b7cf7][ref-f08a22d2ac10]
Knowledge Transfer¶
The same four questions travel between these legal settings: What statute governs? What actual criterion does it specify? Which power or required result depends on that criterion? Can a court determine it on a proper challenge? The answers remain specific to the statute and forum. The historical cases do not settle every present-day UK, Australian or other jurisdiction's law.[ref-0b44420b7cf7][ref-f08a22d2ac10]
Example¶
Immigration detention and removal: statute → actual illegal-entrant status → detention/removal power → judicial examination on challenge. Lord Fraser distinguished actual status from reasonable officer belief; Khawaja and Khera had different appeal outcomes.[^ref-0b44420b7cf7]
Development consent: statute → actual special-industry/non-complying classification → bar on provisional consent without concurrence → judicial determination on challenge. The High Court resolved the legal nature of the condition and remitted outstanding factual appeal grounds.[^ref-f08a22d2ac10]
Neighborhood in Abstraction Space¶
Jurisdictional fact sits in a moderately populated region (54th percentile for distinctiveness): it has near-neighbors but no dense thicket of look-alikes.
Family — Legal Doctrines & Organizational Authority (35 abstractions)
Nearest neighbors
- Presumption of Constitutionality — 0.88
- Legal Doctrine — 0.87
- Distinction without a Difference — 0.85
- Doctrine of Colourability — 0.84
- Obligationes — 0.84
Computed from structural-signature embeddings · 2026-10-17
Not to Be Confused With¶
A jurisdictional fact is not an institution's general jurisdiction, any controlling ultimate fact, or the administrator's opinion when the statute makes actual status decisive. It is not a promise of universal factual appeal or one automatic remedy. A court must construe the specific provision and keep the procedural stage in view.[ref-0b44420b7cf7][ref-f08a22d2ac10]
References¶
[^ref-0b44420b7cf7]: House of Lords (1983), R v Secretary of State for the Home Department, ex parte Khawaja and ex parte Khera, judgment 10 February 1983, reported [1984] AC 74. The report title joins the two applications with a semicolon. Full judgment reproduced by UNHCR Refworld; see especially Lord Fraser's speech on the illegal-entrant precedent condition and Lord Scarman's separate reasoning. [^ref-f08a22d2ac10]: High Court of Australia (2000), Corporation of the City of Enfield v Development Assessment Commission, [2000] HCA 5, judgment 10 February 2000. Official judgment PDF; see especially joint reasons [28]–[52] and separate reasons of Gaudron J [53]–[60].