“There are two schools of thought: (1) that the judge should stop the case if, in his view, it would be unsafe (alternatively unsafe or unsatisfactory) for the jury to convict; (2) that he should do so only if there is no evidence on which a jury properly directed could properly convict. Although in many cases the question is one of semantics, and though in many cases each test would produce the same result, this is not necessarily so. A balance has to be struck between on the one hand a usurpation by the judge of the jury’s function and on the other the danger of an unjust conviction.”
“[30.] But the language of Lord Woolf and Leveson J, so far as coroners are concerned would seem to be nearer the rejected school of thought, albeit Woolf was saying that a coroner should not “decide matters which are the province of the jury”
“I am helpfully referred to the test laid down in R v. Galbraith, which states that when a submission of no case was made, the case was to be stopped when there was no evidence that the person charged had committed the crime alleged, and was also to be stopped if the evidence was tenuous and the judge concluded that the prosecution’s evidence taken at its highest was such that a properly directed jury could not properly convict on it; but that where the prosecution’s evidence was such that its strengths and weakness depended on the view to be taken of the reliability of a witness or other matters which were, generally speaking, within the province of a jury, and one possible view of the facts was that there was to be evidence on which they could properly conclude that the person charged was guilty, the matter was to be tried by them; that borderline cases were in the judge’s discretion.”
“… in my opinion the ordinary principles of the law of negligence apply to ascertain whether or not the defendant has been in breach of a duty of care towards the victim who has died. If such breach of duty is established the next question is whether that breach of duty caused the death of the victim. If so, the jury must go on to consider whether that breach of duty should be characterised as gross negligence and therefore as a crime. This will depend on the seriousness of the breach of duty committed by the defendant in all the circumstances in which the defendant was placed when it occurred. The jury will have to consider whether the extent to which the defendant's conduct departed from the proper standard of care incumbent upon him, involving as it must have done a risk of death to the patient, was such that it should be judged criminal. It is true that to a certain extent this involves an element of circularity, but in this branch of the law I do not believe that is fatal to its being correct as a test of how far conduct must depart from accepted standards to be characterised as criminal. This is necessarily a question of degree and an attempt to specify that degree more closely is I think likely to achieve only a spurious precision. The essence of the matter which is supremely a jury question is whether having regard to the risk of death involved, the conduct of the defendant was so bad in all the circumstances as to amount in their judgment to a criminal act or omission.”
“The duty of those who are entrusted with [a prisoner’s] custody is to take reasonable care for his safety while he remains in their hands. If it is known that he may engage in self-mutilation or suicide while he is in their custody, their duty is to take reasonable care to prevent him from engaging in these acts so that he remain free from harm until he is set at liberty. This duty is owed to the prisoner if there is that risk, irrespective of whether he is mentally disordered or of sound mind. It arises simply from the fact that he is being detained by them in custody and is known to be at risk of engaging in self-mutilation or of committing suicide.”