Judgment
1 Ipp AJA: I agree with Barr J.
2 Hidden J: I agree with Barr J.
3 Barr J: This is an appeal by the Attorney General under s.5F Criminal Appeal Act against interlocutory judgments or orders made during committal proceedings in the Local Court. The respondent to the appeal was the defendant in the Local Court.
4 Acting on information received, police officers executed a search warrant at certain premises. Not long afterwards the respondent was arrested and charged with having knowingly taken part in the cultivation of a prohibited plant, namely a number of cannabis plants. One of the investigating police officers was Senior Constable Soras. At the Local Court the Commissioner for Police ("the Commissioner") produced on subpoena photocopies of certain pages of Senior Constable Soras' official police notebook.
5 It appeared from entries in the pages produced that on the evening of 21 April 1998 Senior Constable Soras had spoken to a man and had arrested him on six first instance warrants and for the offence of driving whilst disqualified. It also appeared that in the early hours of the following day Senior Constable Soras spoke to a man after the man approached him and offered to help the police. The man made a substantial statement of fact which was recorded in the notebook. The page entries for both occasions were heavily blacked out. The name of the man first spoken to, as well as any particulars that might help in his identification, had been obliterated. The second entry had been treated in the same way and no part of the statement made on that occasion was legible. Those obliterations made it obvious to defence counsel that the investigating authorities wished to keep confidential the identity of the person Senior Constable Soras had spoken to on each occasion. It was also obvious to defence counsel, at least from evidence elicited at the hearing, that in deciding to requisition and execute the search warrant the investigating police were acting on information supplied by an informer.
6 Defence counsel wished to cross-examine Senior Constable Soras on the state of his knowledge at the time the search warrant was executed and about how he came by that knowledge. For the purposes of this appeal it does not matter whether or why it was relevant for him to ask such questions.
7 Present in Court was a barrister representing the Commissioner. Defence counsel asked Senior Constable Soras whether the person whose particulars had been recorded in the notebook entry for 21 April 1998 but obliterated from the copy pages produced was the same as the person whose particulars were obliterated from the entries made on 22 April 1998. Senior Constable Soras said that he claimed privilege. Counsel for the Commissioner also objected and made a claim for public interest immunity. He referred to the contents of an affidavit, incorporating a confidential statement, made by a senior police officer. He put forward reasons why Senior Constable Soras ought not to be required to answer the question. The magistrate rejected the claim. Counsel requested the magistrate to defer ordering Senior Constable Soras to answer the question so that the decision could be tested on appeal or to allow the Commissioner to provide additional evidence overnight, enabling further consideration to be given to the matter on the following morning, or to allow time to seek orders from the Supreme Court. The magistrate rejected each of those applications and required the evidence to continue. The question objected to was answered.
8 The terminology used in the Local Court varied. Sometimes a question was objected to, sometimes a claim for privilege was made and sometimes a claim for public interest immunity. What the objectors desired was the exclusion of evidence under s.130, Evidence Act 1995. The section is in the following terms -
130. Exclusion of evidence of matters of state
(1) If the public interest in admitting into evidence information or a document that relates to matters of state is outweighed by the public interest in preserving secrecy or confidentiality in relation to the information or document, the court may direct that the information or document not be adduced as evidence.
(2) The court may give such a direction either on its own initiative or on the application of any person (whether or not the person is a party).
(3) In deciding whether to give such a direction, the court may inform itself in any way it thinks fit.
(4) Without limiting the circumstances in which information or a document may be taken for the purposes of subsection (1) to relate to matters of state, the information or document is taken for the purposes of that subsection to relate to matters of state if adducing it as evidence would:
(a) prejudice the security, defence or international relations of Australia, or
(b) damage relations between the Commonwealth and a State or between 2 or more States, or
(c) prejudice the prevention, investigation or prosecution of an offence, or
(d) prejudice the prevention or investigation of, or the conduct of proceedings for recovery of civil penalties brought with respect to, other contraventions of the law, or
(e) disclose, or enable a person to ascertain, the existence or identity of a confidential source of information relating to the enforcement or administration of a law of the Commonwealth or a State, or
(f) prejudice the proper functioning of the government of the Commonwealth or a State.
(5) Without limiting the matters that the court may take into account for the purposes of subsection (1), it is to take into account the following matters:
(a) the importance of the information or the document in the proceeding,
(b) if the proceeding is a criminal proceeding---whether the party seeking to adduce evidence of the information or document is a defendant or the prosecutor,
(c) the nature of the offence, cause of action or defence to which the information or document relates, and the nature of the subject matter of the proceeding,
(d) the likely effect of adducing evidence of the information or document, and the means available to limit its publication,
(e) whether the substance of the information or document has already been published,
(f) if the proceeding is a criminal proceeding and the party seeking to adduce evidence of the information or document is a defendant---whether the direction is to be made subject to the condition that the prosecution be stayed.