A question of fact is an issue about what actually happened in a particular case, as opposed to how the law applies to those events (a “question of law”). It concerns the evidence: what is proved, who is believed, and what inferences are properly drawn from testimony, documents and other material.In practice, questions of fact are determined by the fact-finder: usually the jury in jury trials, or the judge (or tribunal panel) in non‑jury proceedings. Appellate courts across England and Wales, Scotland, Northern Ireland and Ireland are generally slow to interfere with factual findings, intervening only where there is no evidential basis, a misdirection, or a plainly wrong conclusion.The term is not usually defined in legislation but is well established in case law and procedural rules, particularly in the context of standards of proof, burdens of proof and grounds of appeal. Whether an issue is characterised as a question of fact, a question of law, or a “mixed question” has practical consequences for case strategy, the scope of appellate review and the allocation of decision‑making functions between judge and jury or tribunal. Usage is broadly consistent across all four jurisdictions.