Tort - Res ipsa loquitur
Res ipsa loquitur simply means that the thing speaks for itself. In instances where the courts apply the principle, the burden of proof shifts to the defendant. The maxim is normally applied in instances where the cause of the damage, injury or illness is unknown and it is up to defendant to rebut the presumption that he or she had caused the accident, injury or illness. In Mahon v Osborne (1931) a patient died shortly after a surgery and the post mortem revealed that the surgeon who had conducted the surgery had negligently left a cotton swab in the patient’s body. The court held that there was no need to look any further and that the cotton swab was sufficient prove that the defendant had been negligent and had breached his duty of care i.e. the thing (the cotton swab) speaks for itself (res ipsa loquitur). The fact that the cotton swab was present in the body of the deceased was sufficient evidence that the defendant was guilty and the court need not look any further to i