Detention at His Majesty's pleasure

Detention at His Majesty's pleasure was the indefinite custodial disposition that followed William Chester Minor’s insanity acquittal for killing George Merrett. The jury’s decision treated the question as one of criminal responsibility, not whether Minor had committed the killing; the sentence then placed him in secure custody without specifying a release date, sending him to Broadmoor as a certified criminal lunatic.

Legal Basis

For roughly thirty years, cases of this kind had been governed by the M'Naghten Rules, named for a man acquitted after shooting the private secretary to Sir Robert Peel. The rules concerned responsibility for a crime rather than the fact of guilt. In Minor’s case, the Chief Justice instructed the jury that if it found him of unsound mind and understood that he had killed George Merrett under a delusion, it should return a verdict of not guilty on grounds of insanity. The judge would then determine the necessary custody.

Application to Minor

The court heard the case in melancholy silence. Minor sat in the dock, morose and shamed, while the lawyer obtained for him by the American Consulate-General in London argued that his client was insane. The Chief Justice described the case as brief and sorry, and emphasized that the law had to be applied with precision whatever the defendant’s condition or social standing. The verdict, he indicated, was effectively foreseeable under the applicable rules.

Late on the afternoon of 6 April 1872, the jury found Minor not guilty on grounds of insanity without deliberating. The verdict made him legally innocent of a murder that both he and those around him knew he had committed. The distinction was central to the proceeding: the jury did not deny the killing, but concluded that his mental state placed him outside ordinary criminal responsibility under the rules it had been given.

Sentence and Confinement

The judge’s order was: “You will be detained in safe custody, Dr Minor, until Her Majesty’s Pleasure be known.” The wording supplied no fixed term. It left the duration of confinement to a later decision by the Crown, while directing that Minor remain in secure custody in the meantime.

The Home Office took note of the sentence and decided that, given the severity of Minor’s illness, his detention was likely to last for the rest of his natural life. He was to be transferred from his temporary prison in Surrey to the newly built Broadmoor Asylum, a large institution of red-brick blocks behind high walls and spiked fences in Crowthorne, Berkshire. The former Assistant Surgeon in the United States Army was thereafter designated Broadmoor Patient Number 742 and held as a Certified Criminal Lunatic.

Illness and the Rule’s Aftermath

The evidence of Minor’s illness had developed over several years. In the summer of 1868 he complained of severe headaches and vertigo and was sent under escort to New York for examination. A report signed by Surgeon Hammond on 3 September described him as suffering from monomania and classified him as delusional; later that year, a doctor judged the condition suicidal and homicidal and recommended institutionalization. These records establish the earlier medical context for the delusions considered at trial, though the court’s legal test remained the question of responsibility at the time of the killing.

Decades later, at St Elizabeths Hospital, psychiatrist Dr Davidian described Minor’s condition as dementia praecox of the paranoid form. The later terminology marked a change from the Victorian language of monomania and moral treatment to a more modern psychiatric classification. It does not alter what the 1872 sentence did: after an insanity acquittal, it authorized secure, potentially lifelong detention rather than setting a determinate prison term.