Section 319 is as follows:
A person who by driving a motor vehicle at a speed that is dangerous to the public, having regard to all the circumstances of the case, causes death to another person, is guilty of an indictable offence.
Again, an indictable offence merely means one trial before a judge and jury.
Section 422A of the Crimes Act so far as is relevant:
If on the trial of a person charged with an offence of culpable driving causing death the jury are not satisfied that he or she is guilty of the offence charged, but are satisfied that he or she is guilty of an offence against s 319
- that is dangerous driving causing death -
the jury may acquit the accused of the offence charged and find him or her guilty of the offence against s 319.
In other words if you were to acquit the accused of the charge on a presentment of culpable driving, you must then go on to consider the alternative count by statute of driving a motor vehicle at a speed that is dangerous to the public, having regard to all the circumstances.
So that the question in regard to this charge, that is driving at a speed dangerous to the public is whether in the judgment of yourselves as the jury the speed at which the accused was driving viewed objectively - I underline the word objectively - amounts to driving at a speed dangerous to the public. The question is not whether the accused intended to ride, or appreciated that he was riding at a speed dangerous to the public, but whether in your judgment, that is the judgment of the jury, a reasonable person in the situation of the accused would have appreciated that he was riding at a speed dangerous to the public. So that the test is an objective one, not what is sometimes called a subjective. It is what a reasonable person in the situation would or should have appreciated that he was riding at a speed dangerous to the public.
The [crime is] committed by the act of driving or riding in a manner which any reasonable person in the situation of the rider would recognise as dangerous in the sense that it involved a risk of serious injury or death to others is one which exceeds the ordinary risks of the road and amounts to a real danger to the public. Ordinary risks of the road include those arising from the sort of faulty driving and lack of care which may be expected due to human frailty from time to time from ordinary drivers or riders.
The sort of driving or riding which constitutes this crime is more serious than that. It is driving or riding which a reasonable person in the situation of the rider would understand to be such as would give rise to a serious risk of death or injury to members of the public, going beyond the ordinary risks of the road. It is driving or riding which is therefore fit to be regarded as a serious crime.
If the driving or riding, although negligent you might say, does not go beyond what might fairly be regarded as an ordinary risk of the road, a crime of causing death by dangerous driving or riding is not committed whatever else it might be said about it.
You will note that both s 319 [sic] that is the culpable driving section, and 319, the dangerous driving section, both refer to 'all the circumstances of the case'. Thus in assessing the evidence you need to give consideration to matters such as the road configuration, the state of the traffic, the time of the day, the general traffic situation at the time, the visibility, and any other matter which from the evidence you accept affects the circumstances of the case.
I should add in one respect that merely exceeding the speed limit need not of itself compel a finding of guilt of one or other or either of these alternative charges. But of course you will consider whether the extent of the excess speed, depending on your view of the evidence, satisfies you beyond reasonable doubt in the case of the count on the presentment as to whether there was gross negligence on the part of the accused or whether objectively speaking it was a speed dangerous to the public as I have sought to explain.