IPA patent 5.2.4-practical-guide-to-the-interpretation-of-legislation — IP Australia Patent Manual of Practice and Procedure – 5.2.4 Practical guide to the interpretation of legislation

Also in this Chapter: 5.2.1 Modern Australian Law 5.2.2 Working with Case Law 5.2.3 Working with Statute When interpreting legislation and applying it to a problem, keep the following guidelines in mind: establish whether the legislation was in force at the relevant time. If it was not, establish whether it nevertheless applies retrospectively to the problem; using the table of contents, scan through the whole of the legislation for relevant sections. Check the headings of Parts, Divisions and Sections, the side-notes, and marginal notes to sections; when you find a relevant section, read it very carefully and note any words or phrases of particular significance; check whether any of those particular words or phrases are defined in the legislation; if necessary, check the meaning of any key words in a dictionary; consider whether any sections of the relevant interpretation legislation apply; check whether any of the adjacent sections in the legislation shed light on the section you are looking at, remembering that words are normally used consistently; attempt to interpret the words according to their plain and ordinary meaning or, where appropriate, their technical or legal meaning. Then try to apply them to the problem; if there is ambiguity or doubt as to the meaning of certain words, seek guidance from other parts of the legislation, such as the long title and schedules; where appropriate, identify the purpose of the legislation, or of the particular section you are interpreting, by looking at the whole of the legislation; if necessary, refer to appropriate sources outside the legislation, if that is permitted, to discover purpose or to resolve ambiguity or doubt as to meaning; and interpret the section against a background of any relevant common law presumptions.