A Poisoning of No Substance: The Trials of Medico-Legal Proof in Mid-Victorian England

Abstract

“I am innocent of poisoning Cook by strychnine.” With these words, Dr. William Palmer went to the scaffold, convicted of having perpetrated precisely the crime he denied to the last. Palmer's twelveday trial in May 1856, among the most celebrated English murder cases of the century, had received massive press attention, and his execution was no less scrutinized. Scaffold speeches being traditional opportunities for achieving closure on a case (preferably, though not exclusively, by confession and repentance), press reports devoted a good deal of space to the concerted efforts made to convince Palmer to comply with these expectations: “From the time of his sentence to the very moment when he ascended the scaffold,” one correspondent observed, “Palmer was persuaded, entreated, implored day by day, almost hour by hour, to confess his crimes, not to God, but to man.”Interrogated to the last, Palmer offered instead of closure a riddle, neither directly denying his guilt nor ratifying the grounds upon which his conviction rested. In doing so he seemed to take aim at the most contentious part of the trial, namely, the scientific evidence that had attributed the death of John Parsons Cook to strychnine poisoning. By disavowing strychnine as the agent of Cook's death, he at once repudiated the prosecution's fundamental contention and left open the possibility that, although he had been justly condemned as a murderer, his conviction was based on fallacious medico-legal grounds.Palmer's dying words became the subject of widespread concern.