The Competing Submissions
17 The plaintiff's submissions may be summarised as follows. The proper construction of s 317 turns upon the ordinary English meaning of the words of the provision. Accordingly, 317(a) relates to the suppression, concealment, destruction, alteration or falsification of a thing already in existence, in the knowledge that it is or may be required as evidence. Section 317(b) refers to the making or construction of false evidence, whether or not the evidence is ultimately provided to a prosecutor, or included in a brief of evidence, or introduced as evidence in a judicial proceeding. Section 317(c) relates to the use of false evidence which has been made or constructed under (b), whether that be by the creator of the false evidence or some other person. The plaintiff contends that it is implicit in the use of the term "false evidence" in (b) and (c), when contrasted with the use of the phrase "knowing that it is or may be required as evidence" in (a), that the construction or manufacture of material for the purposes of judicial proceedings is sufficient to bring that conduct within the ambit of the offence constituted by (b) and (c). By way of contrast, the conduct prohibited by (a) relates to material which was not created for the purposes of judicial proceedings, but becomes relevant and therefore potentially required for those purposes.
18 The defendants submit that the provision is solely concerned with physical items of evidence, that is, the reference to "evidence" cannot, on the proper construction of the provision, extend to the written contents of the statements or oral evidence in accordance with those contents. Thus, the defendants would place the following construction upon s 317, namely, that (a) relates to the suppression, concealment, destruction, alteration or falsification of any existing physical item that prevents it being used as evidence in its true form, knowing that it is or may be required as evidence and whether or not it is ultimately admitted into evidence; (b) relates to the manufacture or creation of a false physical item, or shaping existing material into a false finished product, which has been introduced into evidence; (c) relates to the introduction of a false physical item into evidence, which has been fabricated by another. Section 317 did not apply because the document or physical item was not capable of misleading a judicial tribunal, only the statements contained within the document may have been so capable. Given that the documents were never served upon Ms Bishop, they could not have been introduced into evidence according to Part 2 of the Criminal Procedure Act 1986. It should be noted that the submissions in this Court are somewhat more refined than the submissions made by counsel in the Local Court and accepted by the Magistrate.
The Resolution of the Appeal
19 The construction of s 317 must be undertaken according to the legislative context in which it appears. Part 7 of the Crimes Act was introduced by the Crimes (Public Justice) Amendment Act 1990 in order to consolidate the common law and statutory offences relating to interference with the course of justice. When introducing the Bill on 17 May 1990, the then Attorney General said:
At present there is no comprehensive statement of the law relating to public justice offences. The law is fragmented and confusing, consisting of various common law and statutory provisions, with many gaps, anomalies and uncertainties. Common law offences have no specific penalty provided, and the exact limits of these offences are sometimes difficult to establish. The Bill will rectify this by creating specific offences dealing with a number of areas.
[The provisions of chapter 2 were then summarised]
A general offence of perverting the course of justice is also included in chapter 2. It has been necessary to include this offence as, no doubt, offenders will find particularly devious ways of perverting the course of justice that are not covered by any of the specific offences in the Bill. It is intended that this offence will cover such situations. However, where the facts show that a specific offence has been committed, the specific charges should be laid in preference to charging the general offence.
[Chapters 3 and 4 were summarised]
As a result of the creation of the statutory offences in this Bill, a number of common law offences are abolished. These are set out in chapter 5 of new part 7 of the Crimes Act.
20 As foreshadowed by the Bill, s 341 in Division 5 of Part 7 abolishes the common law offence of perverting the course of justice and of attempting to pervert the course of justice. However, a general offence of perverting the course of justice was provided for by s 319 in Division 2 of Part 7 for the reasons articulated in the course of the second reading speech. No such provision was made for the offence of attempting to pervert the course of justice. Accordingly, conduct which was capable of amounting to an attempt to pervert the course of justice at common law is now found within the specific offences established by Part 7.
21 In R v Rogerson (1992) 174 CLR 268, the High Court confirmed the well-established principle that the offence of attempting to pervert the course of justice at a time when no curial proceedings are on foot can be committed, citing R v Murphy (1985) 158 CLR at 609; The Queen v Vreones (1891) 1 QB 360; R v Spezzano (1977) 76 DLR (3d) 160. Mason C. J. confirmed that :-
Action taken before curial or tribunal proceedings commence may have a tendency and be intended to frustrate or deflect the course of curial or tribunal proceedings which are imminent, probable or even possible. In other words, it is enough that an act has a tendency to frustrate or deflect a prosecution or disciplinary proceeding before a judicial tribunal which the accused contemplates may possibly be instituted, even though the possibility of instituting that prosecution or disciplinary proceeding has not been considered by the police or the relevant law enforcement agency [citations omitted]. ……. Action taken to prevent the institution of a prosecution is as much an interference with, or impairment of, the administration of justice as action taken to obstruct the conduct of a prosecution after it has been commenced. ….. an act which has a tendency to deflect the police from prosecuting a criminal offence or instituting disciplinary proceedings before a judicial tribunal, or from adducing evidence of the true facts, is an act which tends to pervert the course of justice and, if done with intent to achieve that result, constitutes an attempt to pervert the course of justice ……
22 Rogerson was itself a prosecution for conspiring to pervert the course of justice, arising out of an agreement to fabricate receipts and accounts relating to monies held by the National Australia Bank, in anticipation of a police investigation of those accounts. Similarly, offences constituted by tampering with evidence or fabricating evidence were prosecuted under the common law as attempts to pervert the course of justice: see The Queen v Vreones (tampering with a sample of a wheat to be used in an arbitration on a contract); R v Rowell [1978] 1 WLR 132 (making a false statement to the police implicating another person in a crime and placing a toy pistol in a bus intending that it be used as evidence of the offence); R v Machin [1980] 1 WLR 763 (making a false allegation of assault by police officers); R v Murray [1982] 1 WLR 475 (tampering with a blood specimen prior to analysis).
23 Section 43 of the Crimes Act 1914 (Cth) provides that it is an offence to attempt to pervert the course of justice in relation to the judicial power of the Commonwealth. In Hugo & Anor. v The Queen [2000] WASCA 199, the Court of Appeal of Western Australia considered the authorities reviewed above in the context of the conviction of two police officers pursuant to s 43 for the falsification of a property seizure record and a notebook entry. Whilst the grounds of appeal did not take issue with the capacity of the conduct of the appellants to constitute the offences upon which they were convicted, the case is instructive in so far as the conduct in each instance consisted of making a false record.