B Principles governing the production of documents on subpoena
15 A party who has issued a subpoena for the production of documents for use in proceedings before a court must satisfy the court that access to the documents is sought for a "legitimate forensic purpose" and also that it is "on the cards" that the documents will "materially assist" that party's case. In R v Saleam [1999] NSWCCA 86, the applicant, who had been convicted of conspiracy maliciously to damage by fire a motor vehicle, had applied to the trial judge for a permanent stay on the ground, amongst others, that he had been induced to commit the offence by his former wife who, in turn, had been acting at the instigation of a police officer. The trial judge refused the application for a stay. He later sought an extension of time in which to appeal against his conviction and leave to appeal against the refusal of a stay. For the purposes of those applications and any resultant appeal, he sought to have certain documents produced by the Commissioner of Police.
16 Simpson J, with whom Spigelman CJ and Studdert J agreed, held, after extensive reference to the observations of the High Court in R v Ridgeway (1995) 184 CLR 19, that the applicant had a legitimate forensic purpose in seeking to demonstrate that a named member of the Police Force had instigated the commission of the offence. However, her Honour concluded that "there was nothing from which one could even speculate" that the documents, files or records sought by the applicant which, he claimed, had been constructed and maintained by the Special Branch of the NSW Police Service, "might contain information that would disclose or permit the inference that Detective Ireland instigated the offence with which the applicant was charged." Accordingly, her Honour concluded, it was not "on the cards" that production of the documents would assist in achieving the assumed legitimate forensic purpose.
17 In Attorney-General for New South Wales v Chidgey [2008] NSW CCA 65 [unreported, 28 March 2008] the respondent had caused to be issued to the Commissioner of Police a subpoena requiring the production, amongst other things, of;
'A copy of the relevant documents and things required to be completed by the Police in accordance with the Controlled Operations Act and Regulations, including but not limited to the applications made for the approval of Controlled Operation CO OS/434.'
18 In her reasons for judgment, Beazley JA, with whom James and Kirby JJ agreed, noted that the legitimate forensic purpose for which the respondent sought production of the documents had been articulated as follows;
'…… the documents contain information that will assist the accused's defence insofar as they go towards challenging the admissibility of evidence pursuant to s 138(1)(b) of the Evidence Act 1995.'
Her Honour summarised the argument advanced on behalf of the respondent as based on the respondent's defence which was;
'that [the] offence was based [on]"an artefact of the design of the controlled operation". It was alleged that the repetition of supply was deliberately sought by the police in order to create, or "ramp up", the charges from isolated incidents to a course of dealing in contravention of s 25A. In other words, it was asserted that the s 25A charge had only come about by the undercover police operatives importuning the respondent to supply the drug on a number of occasions. It was said that the police could only have engaged in that conduct by specifically making an application to do so. Of necessity, the conduct in which they proposed to engage had to be "mapped out" in the plan of the proposed operation, required to be provided in support of an application for a controlled Operations Authority under s 5(2A) [of]the Law Enforcement (Controlled Operations) Act.'
19 After noting that the Attorney-General's essential challenge to the subpoena was that "the respondent had failed to establish that there was a legitimate forensic purpose of the type which permits access to the documents" her Honour held that the Attorney-General had an appeal as of right from an order of a Magistrate refusing to set aside part of the subpoena directed to the Commissioner of Police. Her Honour then proceeded to consider whether there was a legitimate forensic purpose for the issue of the subpoena.
20 It was first noted that the authorities establish that a party is entitled to use a subpoena not for the purposes of "fishing", but to discover whether he has a case at all, and, secondly, that mere relevance of the documents sought to a matter in issue is not sufficient. Rather, it must be "on the cards" that the documents will materially assist the case of the party issuing the subpoena; see Carroll v Attorney-General for New South Wales (1993) 70 A Crim R 162. After referring to the judgment of the Court of Criminal Appeal in R v Saleam (supra) and of the High Court in Alister v The Queen (1984) 154 CLR 404 at 414, her Honour continued, at [68]-[70];
'68 The approach of Gibbs CJ in Alister has been consistently adopted and applied in this State. An early, useful example is Principal Registrar oftheSupreme Court v Tastan. Barr AJ (as his Honour then was) said, at 499, that there will be no legitimate forensic purpose if, "all the party is doing is trying to get hold of the documents to see whether they may assist him in his case": see The Commissioner for Railways v Small. His Honour noted that there was nothing in the case before him that made it appear to be "on the cards" that anything contained in the subpoenaed documents was likely to materially assist the accused in his defence. His Honour considered, at 506, that the defendant wanted access to the documents "to see whether he had a [defence]".