R v Jordan (1956) 40 Cr App R 152

Jordan stabbed the victim, Beaumont, who was admitted to hospital. By the time of death, the stab wound had largely healed and medical evidence indicated that it was not then life-threatening. Doctors gave Beaumont an antibiotic despite knowing that he had previously shown intolerance to it. They also administered excessive intravenous fluids. Beaumont died, and Jordan was convicted of murder. Fresh medical evidence before the Court of Appeal described the treatment as palpably wrong and identified it, rather than the healing wound, as the immediate cause of death. Jordan argued that this extraordinary treatment was a new intervening cause which displaced his responsibility for the original injury.

Was the medical treatment so independent and causally overwhelming that Jordan's stabbing was no longer an operating cause of the victim's death?

The Court of Appeal allowed the appeal and quashed the conviction. The original wound had substantially healed and was not shown to be an operative cause at the time of death. In contrast, the antibiotic was administered after a known adverse reaction and the volume of intravenous fluid was excessive. On the exceptional fresh evidence, the treatment was palpably wrong and produced the death. It therefore broke the chain between Jordan's stabbing and Beaumont's death. The case does not establish that ordinary medical negligence releases an assailant. Later authority, especially R v Cheshire, stresses that even negligent treatment will not sever causation unless it is so independent and potent that the defendant's contribution becomes insignificant.

Medical treatment may break the chain of criminal causation only in an exceptional case where it is independent of the defendant's act and so causally potent that the original injury is no longer an operating and significant cause. Palpably wrong treatment of a substantially healed injury met that threshold in Jordan.

The case marks the outer boundary of intervening medical negligence and is much narrower than it is sometimes presented. An assailant normally remains responsible for foreseeable treatment and complications following an injury. R v Cheshire confirms that negligent treatment will not usually break the chain while the original wound remains a significant cause; R v Smith takes a similarly robust approach. Students should therefore use Jordan as an unusual factual exception, not as authority that serious medical error automatically absolves the defendant.