In a tort case based on negligence, a plaintiff must be able to show that the defendant owed a duty to the plaintiff and that the defendant breached that duty, resulting in harm to the plaintiff. In some circumstances, though, it can be difficult for a plaintiff to obtain clear evidence of the defendant’s breach of duty.
The concept of “res ipsa loquitur,” which is Latin for “the thing speaks for itself,” can be employed in certain situations to establish the defendant’s breach of duty in the absence of direct evidence. Under this doctrine, the mere occurrence of an accident raises the inference of negligence on the part of the defendant. When res ipsa loquitur is applied, the defendant bears the burden to put on other evidence to dispute the presumption of negligence.
There are two essential elements for applying res ipsa loquitur in a particular situation: