36 In his application to cancel or amend the enforcement order, Mr Kraan seeks to produce evidence and materials relevant to the question of his existing use rights which have been obtained subsequent to the enforcement order hearings and which respond to the deficiencies identified in the Tribunal's reasons for making the enforcement order.
37 Mr Townsend says that Mr Kraan cannot do this. He has had his opportunity to argue existing use rights in the previous enforcement order proceedings and he was unsuccessful. It is not open to him to have "a second bite at the cherry". The order made by Members Komesaroff and Hewet is final and determinative of the matter. Mr Kraan did not take the order on appeal to the Supreme Court. He cannot rely on section 120 of the Victorian Civil and Administrative Tribunal Act 1998 to reopen the order on substantive grounds because he appeared at and participated at the hearing at which the order was made. Nor was there any mistake that would justify application of the slip rule provided for in section 119 of the Victorian Civil and Administrative Tribunal Act.
38 Mr Townsend says that the Tribunal decision was made after commencement of the 15 year period which is relied upon by Mr Kraan to establish his existing use rights under clause 63.11. As a result, the Tribunal's decision triggers the first dot point exemption to the deeming provision in clause 63.11.
39 By contrast, Mr Rantino says that the words "after commencement of the 15 year period" in the first dot point of clause 63.11 really mean "during the 15 year period" when read in the context of the remainder of clause 63.11.
40 I agree with Mr Rantino's interpretation. Clause 63.11 provides that an existing use right is established if the use has been carried out continuously for 15 years prior to the date of the application or proceeding in which the extent of any existing use right is in question. In the case of the enforcement proceedings before Members Komesaroff and Hewet, the relevant date was determined to be 29 July 1988. This was 15 years prior to the first of the enforcement order applications then being considered by the Tribunal, which was lodged on 29 July 2003.
41 Clause 63.11 also provides that an existing use right may be established under this clause even if the use did not comply with the scheme "immediately prior to or during the 15 year period" except in two circumstances. One of those circumstances is that during the 15 year period, the validity of the use has been directly challenged by the responsible authority clearly and unambiguously giving a written direction for the use to cease by reason of its non-compliance with the scheme. The other circumstance is that which is in issue here, namely that at any time before or after commencement of the 15 year period the use has been held to be unlawful by decision of a court or Tribunal.
42 I find that the words "after commencement of the 15 year period" must be read in the context of the immediate preceding part of the clause, which refers to "during the 15 year period". Therefore, unless a decision of a court or tribunal has held the use to be unlawful before or during the 15 year period, then the establishment of an existing use right "in relation to an application or proceeding under the Act or the scheme" is not affected by a decision of a court or tribunal after the expiration of the 15 year period.
43 Of course, the question then arises as to whether it can be said that the current proceedings, which are brought under section 121 of the Act, can be said to be in relation to the enforcement order proceedings dealt with by Members Komesaroff and Hewet. If they are, then the 15 year period will be the 15 years prior to the date of the enforcement order application, which is the period between 29 July 1988 and 29 July 2003. If this is the case, then the decision by the Tribunal subsequent to that 15 year period will not affect the establishment or extent of any existing use right in relation to that application or proceeding.
44 But if it cannot be said that the current application is in relation to the previous enforcement order proceeding, and if the extent of any existing use right therefore arises in relation to the current application or proceeding, then the decision of the Tribunal in the enforcement order proceeding becomes highly relevant and would operate as a bar to the establishment of existing use rights in relation to the current proceeding. This is because the relevant 15 year period would date back from the commencement of the present application under section 121, which was 10 March 2006. The decision of the Tribunal in the enforcement order proceeding was made during this 15 year period. Hence Mr Kraan would be unable to comply with the requirements of clause 63.11 and he would therefore be unable to establish an existing use right in accordance with this clause.
45 I consider that any application under section 121 to cancel or amend an enforcement order must be considered to be an application or proceeding in relation to the enforcement order. Section 121 only has any effect if an enforcement order has already been made. It relates directly to the enforcement order made. It does not enable a new enforcement order to be made. Rather it allows an existing enforcement order to be cancelled or amended. Therefore, if I am considering whether to cancel or amend the enforcement order and my decision involves the extent of any existing use right which influenced the making of the enforcement order, then it must be said that what is in question is the extent of an existing use right in relation to the original enforcement order.
46 Section 121 effectively allows an enforcement order to be revisited if the circumstances are justified. It is a mechanism to enable justice to be done if new information comes to light or circumstances change. It would be contrary to this intent if the making of the original order thereby operated to preclude its subsequent cancellation or amendment by virtue of the operation of this provision of clause 63.11. I do not consider this is what clause 63.11 intended. Certainly clause 63.11 intends that a ruling by a court or tribunal that a use is unlawful will be determinative of the issue in any other case, but not in the same case. An application under section 121 must be regarded as being in relation to the same case as the original application under section 114 for these purposes.
47 Consequently, I find that the decision by the Tribunal in the enforcement order proceeding is not a bar to considering the extent of any existing use right in relation to the enforcement order.
48 I consider there are issues that need to be addressed about the exact nature of the existing use rights that are relevant. But before dealing with these matters I will address the other issues raised by Mr Townsend in connection with the question of law.