The relevant statutory provisions
21In a "blameless accident", by definition, the incident or accident that results in the death or injury is not caused by the fault of the owner or driver of the motor vehicle. In the present case the conclusion that the respondent driver was not negligent has the consequence that the motor accident in which the appellant was injured was a "blameless motor accident". Section 7B(1) then operates "for the purposes of and in connection with any claim for damages" to deem the appellant's injuries which resulted from that accident "to have been caused by the fault of the owner or driver ... in the use or operation of the vehicle". That deeming, which is contrary to the actual position in relation to that "fault", only applies where the motor vehicle has "motor accident insurance cover for the accident" (which by s 3B(2) includes coverage under a third-party policy).
22The deeming has the consequence that the MAC Act applies if the "injury" answers the description in s 3A(1)(a), (b), (c), or (d), that the owner or driver is liable in damages to the injured person for the injuries sustained and that the owner and driver are indemnified against that liability under the terms of the relevant third-party policy (s 10).
23Section 138(1) of the MAC Act provides that the "common law and enacted law as to contributory negligence" apply to an award of damages in respect of a motor accident, except as provided by that section. The enacted law relevantly is the Law Reform (Miscellaneous Provisions) Act 1965 (NSW) (LR Act), s 9 and the Civil Liability Act 2002 (NSW) (CL Act), ss 5R and 5S. Sections 138(2) and (3) vary the enacted law; the former by requiring findings of contributory negligence to be made in particular cases; and the latter by describing in more general terms the matters to which regard may be had when apportioning responsibility.
24The starting point is s 9(1) which provides that if the claimant "suffers damage as the result partly of the claimant's failure to take reasonable care (contributory negligence) and partly of the wrong of any other person" the damages recoverable in respect of the wrong "are to be reduced to such extent as the court thinks just and equitable having regard to the claimant's share in the responsibility for the damage". That description of contributory negligence reflects the common law position that the claimant's lack of care must contribute to the occurrence of the injury or the nature or extent of it: Nance v British Columbia Electric Railway Co Ltd [1951] AC 601 at 611 in a passage cited with approval by the majority in Astley v Austrust Ltd [1999] HCA 6; 197 CLR 1 at [21].
25The approach to the reduction of damages in accordance with the language of s 9(1) was described in Podrebersek v Australian Iron & Steel Pty Ltd [1985] HCA 34; 59 ALJR 492 at 494 as follows:
The making of an apportionment as between a plaintiff and a defendant of their respective shares in the responsibility for the damage involves a comparison both of culpability, i.e. of the degree of departure from the standard of care of the reasonable man ... and of the relative importance of the acts of the parties in causing the damage .... It is the whole conduct of each negligent party in relation to the circumstances of the accident which must be subjected to comparative examination. The significance of the various elements involved in such an examination will vary from case to case; for example, the circumstances of some cases may be such that a comparison of the relative importance of the acts of the parties in causing the damage will be of little, if any, importance.
26Section 138(3) is in different terms to s 9(1) and the other State provisions based on s 1(1) of the Law Reform (Contributory Negligence) Act 1945 (UK). Whereas those provisions require the Court when assessing what is "just and equitable" to have regard "to the claimant's share in the responsibility for the damage", s 138(3) provides:
(3) The damages recoverable in respect of the motor accident are to be reduced by such percentage as the court thinks just and equitable in the circumstances of the case.
27Section 74(3) of the Motor Accidents Act 1988 (NSW) is in the same terms. In Nicholson v Nicholson (1994) 35 NSWLR 308 at 333-334, Mahoney JA suggested a reason for the use of the broader language. The concept of contributory negligence involves the plaintiff's lack of care contributing to the damage. However, the effect of s 74(2), which is in similar terms to s 138(2), is to require a finding of contributory negligence in cases where the act or omission may not have caused or contributed to the damage claimed. Relevantly in that case, s 74(2)(c) required a finding of contributory negligence "where the injured person ... was ... not wearing a seat belt as required" by law. That being the position, the broader language may have been used to allow the Court in such cases to recognise that it would be unjust and inequitable, where there was no such causation or contribution, to reduce the damages otherwise recoverable. The remaining members of the Court, Kirby P with Meagher JA agreeing, also held that the finding of contributory negligence required by s 74(2)(c) did not constrain the inquiry as to what was "just and equitable" or prevent consideration of all of the circumstances, including whether the absence of a seat belt contributed to the damage claimed.
28In a case that does not involve a finding of contributory negligence made under s 138(2) or deemed fault on the part of the owner or driver, an assessment of what is "just and equitable in the circumstances of the case" will involve, as part of that evaluative process, a comparison of the kind described in Podrebersek. See the discussion per Giles JA in Mackenzie v The Nominal Defendant [2005] NSWCA 180; 43 MVR 315 at [54] - [63]. In Joslyn v Berryman [2003] HCA 34; 214 CLR 552 at [157] Hayne J considered s 74(3) to require the undertaking of such a comparison: cf Kirby J at [133].
29Section 5R of the CL Act, which by s 3B(2)(a) applies to motor accidents, provides that the principles applicable in determining whether a person has been negligent, which include those in s 5B, also apply in determining whether the person who has suffered harm has been contributorily negligent in failing to take precautions against the risk of harm which materialised and resulted in injury. As Basten JA observed in Gordon v Truong [2014] NSWCA 97; 66 MVR 241 at [15], a case involving a collision between a pedestrian and a motor vehicle, the existence and extent of a claimant's contributory negligence is to be assessed by reference to the risk of harm which is the subject of his or her claim for damages, and the precautions that a reasonable person in the claimant's position would have taken against that risk. Section 5S provides that in apportioning responsibility a court may determine a reduction of 100 per cent in the claimant's damages by reason of contributory negligence.
30The "No-fault claims - children and blameless accidents" provisions in Pt 1.2 were introduced by the Motor Accidents Compensation Amendment Act 2006 (NSW). Division 1 provides for "Recovery for blameless accidents" and Division 2 for "No-fault recovery by children". In the second reading speech (New South Wales Legislative Assembly, Parliamentary Debates (Hansard), 9 March 2006 at 21,403), the Minister for Transport (Mr Watkins) described Division 1 as extending "the scope of the CTP scheme to provide compensation entitlements for injury or death resulting from a blameless or inevitable accident, which is a motor vehicle accident where no-one is considered to have been at fault - for example, when a person is injured because a driver experiences an unforeseen illness or medical condition, which results in a loss of control over the vehicle".
31As the Minister also explained (at 21,403), Division 2 provides a "special benefit for children aged up to 16 and a resident of New South Wales at the time of the accident, in those circumstances where the driver of the motor vehicle involved in the accident was not 'at-fault'. The child's injury must be caused by a motor vehicle accident of a kind recognised by the Act. The special benefit will cover the injured child's treatment, rehabilitation and care costs as currently prescribed by the Act". That entitlement to damages (described in s 7J(3) as a "special entitlement") is not to be reduced on account of contributory negligence of the child except in the limited circumstances described in s 7K(2). Those circumstances involve death or injury occurring in or in relation to the commission of a serious offence. As between the two divisions, subject to the exception in s 7P(2), Division 2 does not apply in a case to which Division 1 applies. The effect of that exception is that any liability to a child for damages arising under Division 1 for expenses within the "special entitlement" is not to be reduced on account of contributory negligence in the way any other damages might be reduced in accordance with s 7F (see below).
32In Axiak the Court held that the closing words of the definition of blameless accident - "and not caused by the fault of any other person" - refer only to tortious conduct of a person other than the injured person. That is principally because "fault" is defined in s 3 as meaning "negligence or any other tort". It follows that a "blameless accident" can include one in which there has been contributory negligence of the injured person. Section 7F (which provides that Division 1 "does not prevent the reduction of damages by reason of the contributory negligence of the deceased or injured person") is consistent with that being the position.