(vii) the point of impact is at variance with the Crown witness (Snr Const West) and the defence expert (Mr Mark Sculthorpe).
27 I do not agree with this submission for the reasons which follow.
28 Although Mr Dykes' vehicle left skid marks, the Kia did not. Mr Sculthorpe agreed that the impact speed of the Kia could be calculated by reference to its pre-braking speed, the drag factor and the braking time. He also agreed that the impact speed of the Monaro could be calculated using a conservation of momentum calculation.
29 Mr Dykes gave evidence that when the Monaro started to lose control he saw the Kia "braking hardly" and veering off the left side of the road. Prior to that time, the Kia had been travelling at 80 kph.
30 Mr Sculthorpe was of the opinion a drag factor of -0.5 g, -0.6 g or -0.7 g could be used. He accepted that the drag factor of -0.7 g would be the appropriate figure if the Kia was braking at or about its maximum rate. The evidence of Mr Dykes as to the braking he observed, coupled with the emergency situation in which the brakes of the Kia were applied, suggests the Kia was braking at or about its maximum rate. The choice of a drag factor of -0.7 g may be regarded as conservative as the selection of a lower drag factor would have resulted in a higher impact speed of the Monaro.
31 Mr Sculthorpe considered it reasonable to apply a braking time of half a second, a second or 1.5 seconds, or maybe even two seconds. He regarded Mr Johnston's determination of a braking time of one second as a guess. However, the choice of one second was not a guess but rather the application of Mr Johnston's learning and experience. As he explained, the one second of braking time was based on it being a discernible (to Mr Dykes) period of braking. He said that anything much longer than the one second braking time, the Kia would be going at a very low speed and the damage would not have supported the magnitude of the impact. If one assumed much shorter than the one second of braking, then it was not conservative because it would increase the speed of the Monaro. It was for those reasons he took one second as being a reasonable value, trying to be reasonably conservative.
32 There was no mechanical examination of the Kia by the police forensic unit. This accorded with the usual police practice of not mechanically examining vehicles considered not to be at fault in accidents. The absence of such an examination was not shown to undermine the calculation of the Monaro's speed.
33 It was not suggested to Mr Johnston that knowledge of the appellant's version of events altered his opinion.
34 Mr Sculthorpe considered it very likely the Kia bounced or rotated to its rest position after impact and had not rolled as Mr Johnston stated. However, as Mr Johnston said in evidence, it was probably the case that the Kia did not simply roll into its rest position but rather it was a conservative assumption which he made. By not adopting the conservative assumption that the vehicle rolled into its rest position, the post-impact speed of the Kia would have been higher and in consequence the impact speed of the Monaro would have been the greater.
35 There was agreement between Mr Johnston and Mr Sculthorpe as to the vehicle orientation of the Monaro and Kia at the moment of collision. Each agreed that the scrape marks on the eastbound side of the roadway were likely to have been made by the exit path of the Kia. The distance travelled by the Monaro from the point of impact to rest was relevant to the calculation of the Monaro's impact speed as the shorter the distance the lower the speed of the Monaro. Mr Johnston calculated the distance from the area of impact which he had identified. The jury rejected Mr Sculthorpe's point of impact and Snr Const West's suggestion that the point of impact was the scrape marks in the eastbound was rejected by both Mr Sculthorpe and Mr Johnston.
36 In my opinion, the evidence of Mr Johnston can be accepted as forming part of the evidence available as to speed to be considered by the jury. Senior counsel for the appellant did not dispute that the jury could accept that evidence. That evidence did not stand alone. There was additional evidence of speed from Messrs Dykes, Boyd and Jacobs.
37 Mr Dykes' evidence was that he observed the Monaro coming around the corner in the opposite direction and that it was travelling "very fast". He formed that judgment when the Monaro was half way through its turn when it was in the gravel shoulder. Mr Dykes agreed in cross examination that when he spoke to a police officer at the scene he made no reference to the speed of the Monaro. He was a young man and had been on his P plates and driving for about six months. He said he did not tell the police officer of the speed of the Monaro because he was more concerned about the driver of the Kia, so he was thinking more along the lines of the direct incident, not the speed of any of the vehicles.
38 Mr Boyd had worked for a pit crew for a racing team and had a great interest in cars. He had held a driver's licence for 20-odd years. He gave evidence that he was driving east along Sheather's Lane when his vehicle was passed by the Monaro which he had observed coming toward him from the east. He said "It was coming toward me extremely fast". He continued to look in the rear vision mirror when the Monaro had passed and observed its brake lights come on before the bend and then he saw a big cloud of dust come up. He continued on his journey to Camden but on his return spoke to some police officers at the scene and told them of his earlier observations of the Monaro. He gave a written statement on 1 April 2005. He was cross examined principally in relation to his estimation of distances, the position where the vehicles passed and the existence of two rather than one small bridge on Sheather's Lane and differences between his evidence and the statement.
39 Mr Boyd was accompanied by his brother-in-law, Mr Jacobs. Mr Jacobs gave evidence that what he noticed about the Monaro was its speed, which was "excessively fast". After the Monaro passed, he turned his head to watch it. He saw its brake lights come on. He was cross examined about statements which he had given and his estimate of distances.
40 Mr Forrest said he only saw the Monaro for a split second before the accident. He gave no evidence as to its speed.
41 The jury had the opportunity of seeing and hearing each of these witnesses give evidence. It was open to the jury to regard the matters extracted in cross examination as peripheral and to accept the main thrust of the evidence of all three men that the speed of the Monaro was excessive. As was stated in M v The Queen "[this] court must not disregard or discount the consideration that the jury has had the benefit of having seen and heard the witnesses."
42 Having regard to the whole of the evidence as to speed, in my opinion it was open to the jury to be satisfied beyond reasonable doubt that the appellant was driving in a manner dangerous by reason of the speed at which he drove the Monaro.
43 The Crown also alleged that the appellant was driving in a manner dangerous by reason that he steered his car in such a way that it went onto the gravel on the southern side of the road or that he drove without proper attention to oncoming traffic or both. In R v Coventry (1938) 59 CLR 633 the High Court said that the relevant standard was an objective standard and that:
"It is, in our opinion, wrong to exclude an act or omission from 'manner of driving' because it is casual or transitory in some senses in which these somewhat flexible words may be understood. Such an exclusion may even suggest that carelessness or inattention may constitute a defence to a charge under the relevant provision of the section. Sudden, even though mistaken, action in a critical situation may not, in all the circumstances of a case, constitute driving to the danger of the public. But casual behaviour on the roads and momentary lapses of attention, if they result in danger to the public, are not outside the prohibition of that provision merely because they are casual or momentary. Further, 'manner of driving' includes, in our opinion, all matters connected with the management and control of a car by a driver when it is being driven. It includes starting or stopping, signalling or failing to signal, and sounding a warning or failing to sound a warning, as well as other matters affecting the speed at which and the course in which the car is driven."
44 The driving of the Monaro in such a manner as to cause it to leave the bitumen carriageway at a speed in the order of 80-82 kph in circumstances where the road shoulder provided an uneven surface with an edge below the sealed road at a bend with oncoming traffic provided circumstances in which, in my opinion, it was open to the jury to be satisfied beyond reasonable doubt that the accused was guilty of driving in a manner dangerous to other road users.