Res ipsa loquitur
Latin: The thing speaks for itself
Also called: Doctrine of res ipsa loquitur
The thing speaks for itself. Where an accident is of a kind that does not ordinarily happen without negligence and the thing was under the defendant's control, negligence may be inferred.
Explained
Res ipsa loquitur is a rule of evidence in the law of negligence. Ordinarily the plaintiff must prove that the defendant was negligent. Where the maxim applies, the occurrence itself raises an inference of negligence, and the defendant must then give an explanation consistent with the absence of negligence. It is not a separate tort and has no statutory home in India; it is applied by the courts as part of the common law of torts.
Three conditions are usually required. The thing that caused the harm must have been under the management or control of the defendant or his servants. The accident must be of a kind that does not ordinarily happen if those in control use proper care. The true cause must not be known or explained, for if the facts are fully proved the court decides on them and the maxim has no work to do.
The Supreme Court has applied the maxim in several leading cases. In Municipal Corporation of Delhi v. Subhagwanti (1966), the collapse of an eighty year old clock tower in Chandni Chowk under the Corporation's exclusive control raised an inference of negligence, and the Corporation was held liable for the deaths. In Pushpabai Purshottam Udeshi v. Ranjit Ginning and Pressing Co. (1977), a car that went to the extreme wrong side of the road and struck a tree showed negligence, and the owners failed to discharge the burden of disproving it.
The maxim has limited scope in criminal law. In Jacob Mathew v. State of Punjab (2005), the Court held that criminal negligence of a medical professional requires gross negligence, and that res ipsa loquitur, though a rule of evidence in civil cases, has only a limited application in a criminal trial and cannot by itself establish guilt. Examiners test the conditions, the shift of the evidential burden, and the difference between civil and criminal use.
Example
For example, a bag of cement falls from the upper floor of a building under construction by a contractor and injures a passer-by. Bags do not ordinarily fall if proper care is taken and the site was under the contractor's control, so negligence may be inferred unless the contractor explains the fall.
For the exam
- Meaning: the thing speaks for itself; it is a rule of evidence, not a separate tort.
- Thing under the defendant's control, and accident not ordinarily possible without negligence.
- Inference of negligence; the defendant must explain or disprove it.
- Applied in MCD v. Subhagwanti (1966), the clock tower collapse.
- Limited role in criminal negligence prosecutions (Jacob Mathew, 2005).
33 questions in the Law Maker question bank use this maxim. Practise Law of Torts questions
Judgments
- Municipal Corporation of Delhi v. Subhagwanti (1966)The Court held the Municipal Corporation liable in negligence for deaths caused by the collapse of its 80-year-old Clock Tower in Chandni Chowk, applying res ipsa loquitur and the owner's duty for structures beside a highway, and upheld the damages.
- Pushpabai Purshottam Udeshi v. Ranjit Ginning and Pressing Co. (P) Ltd. (1977)Applying res ipsa loquitur, the Court found the company's manager negligent and held the company vicariously liable for a passenger's death because he was driving in the course of employment; the insurer's liability was limited to Rs. 15,000.
- Jacob Mathew v. State of Punjab (2005)A doctor is criminally liable under Section 304A IPC only for gross negligence judged by the Bolam test; the Court affirmed Dr. Suresh Gupta, laid down guidelines for prosecuting doctors, and quashed the appellant's prosecution.
Related terms
- Respondeat superiorA master or employer is liable for the wrongs of his servant committed in the course of employment, even though he did not himself commit them.
- Volenti non fit injuriaA person who freely and with full knowledge consents to a risk of harm cannot sue for the harm that results. It is a general defence in the law of torts.
- Novus actus interveniensA new, independent act or event that intervenes between the defendant's conduct and the harm and breaks the chain of causation, so that the defendant is not liable for the harm that follows.
- Damnum sine injuriaActual loss or harm caused without the violation of any legal right gives no cause of action in tort.
- Actori incumbit onus probandiThe burden of proving a fact lies on the party who asserts it and seeks judgment on it. Reflected in Sections 104 and 105 of the BSA.
Checked 6 November 2026. Statutory text is quoted from the Bare Acts library, taken from India Code. See the full glossary.