With respect, the ultimate onus of proving all elements of the offence, including either the voluntary or criminally negligent firing of the fatal bullet, rested upon the Crown and, if the evidence available to the Crown did not discharge the onus, the appellant was entitled to be acquitted. That is the principle clearly laid down in Woolmington v DPP. [9] In Woolmington, a case of homicide by shooting, the appellant had given a version of the confrontation between himself and his wife, the deceased. He said the firing of the gun was an accident in that whilst he was getting the gun from under his shoulder and was drawing it across his breast it accidentally went off. [10] It was in reference to this evidence that the well-known statement was made about the golden thread of English criminal law and Viscount Sankey LC said: [11]
When dealing with a murder case the Crown must prove (a) death as the result of a voluntary act of the accused and (b) malice of the accused.
His Lordship went on to explain:
If the jury are either satisfied with [the accused person's] explanation or, upon a review of all the evidence, are left in reasonable doubt whether, even if his explanation be not accepted, the act was unintentional or provoked, the prisoner is entitled to be acquitted. [Emphasis added.]
In this passage the common law term "unintentional" means "involuntary" or "unwilled" and those were the terms preferred by Barwick CJ in Ryan . [12] In that case, his Honour said:
by whatever adjective or adjectival phrase it is described, the deed which was not the result of the accused's will to act cannot, in my opinion, be made the source of criminal responsibility in him.
It is impossible to suppose that the majority in the Court of Appeal did not appreciate where the ultimate onus lay in this case. Their Honours must have had in mind the common situation where the evidence simply reveals that the alleged offender, being presumably of sound mind, consciously did the act which is an element in the offence charged. Commonly, evidence of that kind is sufficient to discharge the Crown's ultimate onus of proof [13] unless the alleged offender adduces or is able to point to some evidence which suggests that the doing of the act was involuntary. In the absence of any such evidence, it is frequently unnecessary and inappropriate for the trial judge to give a specific direction about voluntariness. That is the position when, in the circumstances revealed by the evidence, human experience would regard the act done as having been done under the conscious control of the doer.
1. [1935] AC 462; (1935) 25 Cr App R 72, applied to the element of accident under the Criminal Code Qld in Mullen.
2. [1935] AC 462 at 472; (1935) 25 Cr App R 72 at 85.
3. ibid (at 482; 95-96).
4. (1967) 121 CLR 205 at 213.
5. Bratty v A-G (Northern Ireland) [1963] AC 386 at 407, 413; Falconer (1990) 171 CLR 30 at 40-41, 43, 61, 68, 83; 50 A Crim R 244 at 249-251, 252, 265-266, 271-272, 283.