Specific intention
39 Where the Crown has to establish the act of the accused was done with a specific intent (that is, that he or she sought by that act to achieve a particular result), it is usual to direct a jury in the appropriate case that a person's act may themselves provide the most convincing evidence of his or her intention.
40 Where it is put that a person who deliberately does such an act must have intended to inflict such injury, this is a statement that amounts to no more than an invitation to draw such an inference or conclusion because it is impossible to imagine from one's experience of life what other result the accused, himself or herself, could have sought to achieve by that act: Regina v Stokes v Difford (1990) 51 A Crim 25 at 30.
41 The principle is that as a person is usually able to foresee what are the natural consequences of his or her acts, so it is, as a rule, reasonable to infer that he or she did foresee them and intend them: Deery v Deery (1953-1954) 90 CLR 211 at 230 per Dixon CJ.
42 In accordance with accepted principle where proof is required beyond reasonable doubt, any inference should not be drawn from direct evidence unless it is the only rational inference in the circumstances. Where a specific result is the obvious and inevitable consequence of a person's act and where he or she deliberately does that act, then a conclusion may be drawn that the person did the act with the intention of achieving that specific result.
43 I have considered the submissions on behalf of the accused as to whether the facts proved in evidence could be said to establish what may be termed a reckless killing constituting murder or a negligent killing in the sense in which those terms are understood. See: Pemble v The Queen (1971) 124 CLR 107, 135.
44 The submissions made required a determination of the accused's state of mind with which the fatal acts were done. The acts of the accused proved in evidence establishes, in my opinion, a state of mind beyond recklessness in the sense of an indifference to a result of which at least the likelihood is foreseen and, it follows, one which clearly excludes an alternative finding of a negligent killing constituting manslaughter.
45 In the present case, it was and would have been known to the accused even in her condition at the time that an infant who was placed face down with the nose and mouth placed in close proximity to, if not directly on, the sink hole in the bath with the tap turned on would not survive.
46 Notwithstanding the submissions of learned senior counsel for the accused as to possible alternative verdicts, the combination of the accused's deliberate acts as established in evidence to the requisite standard, as I have found occurred, admits of only one conclusion, namely, that those acts were done by her with an actual intention of achieving the specific result or outcome to which I have referred, namely, that death would result from them.