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Doctrine

Res Ipsa Loquitur

Tort and Equity Doctrine
Origin The Latin phrase dates to Cicero's Pro Milone, 52 BC; its use as an English and American common law negligence doctrine developed in the nineteenth century.

Res ipsa loquitur, Latin for the thing speaks for itself, is a doctrine of tort law that allows a court or jury to infer a defendant's negligence from the very circumstances of an accident or injury, without direct evidence of specifically how the defendant behaved, when the injury is of a kind that ordinarily does not occur absent negligence and the instrumentality that caused it was within the defendant's control. The phrase itself dates to the Roman orator Cicero's defense speech Pro Milone in 52 BC, though its use as a doctrine of English and American negligence law developed many centuries later. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/

Facts
Origin Period
The Latin phrase dates to Cicero's Pro Milone, 52 BC; its use as an English and American common law negligence doctrine developed in the nineteenth century. 1
Core Principle
Where an injury is of a kind that does not ordinarily occur without negligence, and the thing that caused it was under the defendant's control, a plaintiff can establish a prima facie case of negligence from the circumstances alone, without proving the defendant's specific negligent act. 1
Origin Period
Origin Period (category)
Ancient (BCE) 1
Classification
Doctrine Category
Tort Law 1
Connections

Associated With

In Area Of Law

Tort Law, Doctrines

Entity-backed identity for the doctrine category value this doctrine already carries as an enum fact, resolved to a doctrine entity by an explicit value-to-entity map (phase 3 bucket conversion, docs\design_entity_backed_browse_buckets_20260928.md). The enum fact itself stays on the entity unchanged.

In Legal System

Source Res Ipsa Loquitur (Wikipedia)
Sources
1. Res Ipsa Loquitur (Wikipedia)
Wikipedia
  • Lead section
    the thing speaks for itself
  • a doctrine in common law and Roman-Dutch law jurisdictions under which a court can infer negligence from the very nature of an accident
  • In Legal System: Common Law
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