An example of such a provision may be seen in Woods v Bate (1987) 7 NSWLR 560. The provision with which we are concerned in this present case is not of that type.
17 The category into which any particular requirement may fall depends upon the terms used, the context in which the provision appears and the scope and object of the statute. Thus, in Tasker v Fullwood (1978) 1 NSWLR 20, Hope, Glass and Samuels JJA, after referring to a number of authorities including Victoria v The Commonwealth, said, inter alia, at pp 23-4:
"From these sources we take the following propositions: (1) The problem is to be solved in the process of construing the relevant statute. Little, if any, assistance, will be derived from the terms of other statutes or any supposed judicial classification of them by reference to subject matter. (2) The task of construction is to determine whether the legislature intended that a failure to comply with the stipulated requirement would invalidate the act done, or whether the validity of the act would be preserved notwithstanding non-compliance: the Franklins Stores Pty Ltd case (1977) 2 NSWLR 955 at pp 963 et seq. (3) The only true guide to the statutory intention is to be found in the language of the relevant provision and the scope and object of the whole statute: Hatton v Beaumont (1977) 2 NSWLR 211 at p 220. (4) The intention being sought is the effect upon the validity of the act in question, having regard to the nature of the precondition, its place in the legislative scheme and the extent of the failure to observe its requirement: Victoria v The Commonwealth at pp 179, 180."
18 In the present case, the statutory prescription that a claim for compensation may be served by being "sent by post to … any place of business of the person" is a provision which, in my opinion, may be satisfied by substantial compliance. The object of the provision is that the employer be notified. Notification by post is permitted. I consider that the provision would be satisfied notwithstanding a trivial error in the name of the employer, unless that error was such as to result in the non-receipt by the employer of the claim. I consider that a minor error in the address would not matter if it were shown that the employer received the claim in the due course of the post. The statute is not concerned with minor technicalities that do not count. The statute is concerned to ensure that an employer is served with a claim for compensation and it permits service by post, in the manner stated. If there is substantial compliance with that provision, that is sufficient .
19 I am prepared to accept that a post office box is not a place of business; but the question remains whether the sending of a claim by post to a post office box nominated by the employer is an appropriate way of sending the claim by post to the place of business of the employer, or, to put the matter in a different way, whether the sending of the document by post to a post office box achieves appropriate and substantial compliance with the statutory provision.
20 In my opinion, the sending of a document by post to a business person's post office box is an appropriate and possibly the most appropriate way of sending the document by post to that person's place of business. That is because post office boxes are used by businesses to achieve greater reliability in the delivery of postal articles. Documents sent by post to a post office box will be placed in the appropriate post office box ready for collection by the recipient. Documents which are addressed to a place of business are liable to be lost by being slipped under doors of business premises and so on. Very often, business premises do not provide a convenient box for the collection of mail or it is inconvenient for postal officials to find their way through a building to use it. In my opinion, the sending of mail to a nominated post office box is the appropriate and efficient means of sending mail to a business person and it is common practice for businesses to have a post office box and for their customers and other persons dealing with them to use it.
21 The point I am making is, as it happens, reflected in the letterhead of St. Margaret's Hospital which has been tendered in the appeal without objection. That letterhead, after setting out the name of the hospital in large letters, then sets out in small letters the correct name of the employer, St. Margaret's Hospital Limited, and its address. The letterhead then states:
"Please address all correspondence to:
P.O. Box No.381, Darlinghurst, N.S.W. 2010"