Consideration
17 I do not think that the proposed amendment to the Notice of Appeal should be granted. It is based upon an interpretation of the definition in the LEP which does not appear to have been submitted below. Had it been part of the appellant's case, additional evidence may have been forthcoming from the Council. Not only was it not included in the grounds of appeal, no relief appropriate to the point was sought in the Notice of Appeal. Nor was it included in the appellant's extensive written submissions on appeal. True it is that it had some support in the original report of Mr Gray. However, Mr Gray's concept was abandoned by another expert engaged by the appellant, Dr Carr. In addition, it may be noted that the proposition put by the appellant involves the flooding of Prospect Creek only (scenario 1). That is but one of three scenarios canvassed in the evidence. Scenario 2 is when Georges River breaks its banks first and scenario 3 when both Prospect Creek and Georges River flood at the same time. The appellant should be bound by the way it put its case below.
18 While I am of the opinion that the amendment ought not be permitted, I propose to make some brief remarks on the construction of the definition of floodway which indicate that the submission is, in any event, untenable.
19 In my opinion, the construction urged on the Court by the appellant must involve reading the conjunctive 'and' in the definition of floodway as 'or'. Indeed, Mr Rayment confirmed this in his submission. I do not agree. To read 'or' for 'and' would mean that when Prospect Creek broke its banks, in flood, there would be at least two flow paths for floodwaters. One in the channel itself and one on the adjoining flood-plain, even though they are part of one mass of water. Pursuant to the definition, viewed in the fashion urged on the Court by the appellant, one of these flows would constitute 'the main flow path' and the other would not. Assuming the channel of the creek was the main flow path, then the adjoining inundated areas of the flood plain, flooded from the creek overflowing its banks, would not be in a floodway. This demonstrates the artificiality of such a concept. It cannot have been intended by the drafter of the LEP.
20 The preferable interpretation is arrived at by the application of the ordinary rules of construction. That is, that the definition is cumulative and not in the alternative. This is consistent with the context of the LEP. Floodway means the channel of the river together with those portions adjoining the channel (being part of the flood-plain) which constitute the main flow path of the floodwaters.
21 As a matter of ordinary construction 'and' means 'and' and not 'or'. It is conjunctive and not disjunctive.
22 Only in very narrow circumstances will a Court modify the language of a provision to read 'or' for 'and' or vice versa. The first circumstance is where the legislature has made a mistake and used the incorrect conjunction. This cannot be here concluded. There is no reason to suggest that the drafter of the definition made a mistake in using the conjunction.
23 The second situation is where there is a list of items joined by 'and', and the provision is clear that the list is one of alternatives, see Re Licensing Ordinance (1968) 13 FLR 143 at 147. That is also not the case here. Beyond these circumstances, the Courts will rarely treat 'and' and 'or' as interchangeable.
24 In approaching the LEP definition, the first thing to note is that it uses the word 'means', not 'includes' or 'means and includes'. Use of the word 'means' limits the meaning to that set out in the definition. If the ordinary meaning is different, it is discarded. It makes the definition 'hard and fast' and rigidly defines and limits the meaning to the exclusion of other meanings. The definition is exhaustive. See, eg Gough v Gough [1891] 2 QB 665 and Black v Shaw (1913) 33 NZLR 194.
25 Accordingly, Sheahan J could not call dictionaries in aid if the statutory definition varied from the ordinary meaning. Likewise, definitions in other instruments or documents could not be utilised. However, for reasons I will discuss, I do not think that his Honour so erred.
26 Although his Honour's reasons are to be principally found in his final judgment, which was given after further expert evidence was adduced, the initial judgment contains some discussion on construction of the LEP definition.
27 His Honour said that the LEP definition should be given its literal meaning. However, because of the generality of the definition, questions arose as to how it should be applied. The answers to its practical application were clearly not to be found in its text. What I understand his Honour to be saying is that, in these circumstances, assistance in its application may be found in other documents.
28 This approach appears more explicitly in Sheahan J's final judgment. Having set out the LEP definition, his Honour noted:
However, for the purpose of precisely identifying those portions of land which fall within a floodway, the definition is somewhat limited, because it is difficult to pinpoint a specific line on the ground where the volume or depth or speed of the flood waters is so reduced as to remove that area from the definition.