[2] In April 1998 Detective Sergeant Heymans ("Heymans") received a complaint to the effect that certain persons had been defrauded into paying extra money towards the building of their home by Ochre Building Pty. Ltd. ("Ochre"). It was alleged that contractors' invoices had been altered by a person at Ochre to show an inflated amount owing, that the extra money had been paid to Ochre and that this money had been retained by Susan Fraser-Adams ("Fraser-Adams"), Ochre's Managing Director. Information was received to the effect that a number of other clients of Ochre had also been defrauded in a similar manner. Investigations were commenced, and on 18 May 1998 Heymans and another police officer attended at Ochre's offices, then located in Ludmilla, armed with a search warrant. Fraser-Adams and her solicitor, Mr. Carter, were present. Mr. Carter said that Fraser-Adams would cooperate and that the warrant was unnecessary. A number of documents were collected and taken to the Berrimah Police Complex. During the following few weeks, Heymans attended at Ochre's office and collected other documents which were supplied voluntarily.
[3] Ochre carries on business as a project manager for building projects. It is the owner of a PUMA brand personal computer. Ochre's financial records are contained in a program called MYOB under the file names "ochre976.prm" and "ochre986.prm" which is stored on the computer. However, at least by January 2001 there was also other material stored on the computer including the financial records of four other companies related to Fraser-Adams and her husband, non financial records of Ochre and the other companies, confidential information relating to Ochre and the other companies (including quotes and proposals for projects and information relating to the structuring of finance for building projects), personal information relating to Fraser-Adams, her husband and their children, as well as certain documents for which legal professional privilege is claimed.
[4] By May 1998 Heymans became aware that Ochre used a computer program for its business accounts, and used the computer program in order to generate cheques. Heymans decided not to seize Ochre's computer records at that stage as he considered that this would disrupt the running of Fraser-Adams' business, and prevent Ochre's accounts from being audited, which he knew Fraser-Adams intended to have done.
[5] In early 2000 charges were laid against Fraser-Adams which resulted in a committal hearing. On 10 November 2000 Fraser-Adams was committed to stand trial on a number of counts of deception, forgery and uttering. During the committal hearing Heymans was advised by the prosecutor, Mr. Grogan, to seize the computer and to have the records analysed. On 11 December, 2000 an indictment was presented in this Court charging Fraser-Adams with 36 counts of obtaining property by deception, contrary to s 227 (1) of the Criminal Code. On 15 December 2000 Heymans obtained a search warrant issued by Jennifer Minns, a Justice of the Peace, authorising him to enter Ochre's office (which was then situated at 9 Gunbar Street, Bayview) and to search the office and seize Ochre's records and ledgers of the accounting system for the period October 1996 to December 1997 and the computer containing the accounting system records. The warrant expired on 28 December, 2000 without being executed as the officers of Ochre were away on holidays.
[6] On 3 January 2001 Heymans obtained a second warrant in identical terms to the first issued by Ms. Minns. An attempt to execute the warrant on 4 January 2001 was unsuccessful. On Monday 8 January Heymans telephoned Fraser-Adams and informed her he wished to seize more documents. When asked what it was that he required, he said that it was "in relation to computer documents". He arranged to attend at her office at 10.00am on Tuesday 9 January. Later this was altered to 10.00am on Thursday 11 January to meet the convenience of Fraser-Adams' solicitor.
[7] On 10 January, Mr. Berkley, Fraser-Adams' solicitor, telephoned Heymans on two occasions to seek more information regarding the search warrant. As a result of those discussions Berkley became aware that Heymans intended to seize the computer. Berkley informed Heymans that the computer contained information which was subject to a claim of legal professional privilege and information which was confidential and which related not only to Ochre but to other companies as well. They both discussed the question of a protocol for seizing privileged documents. Heymans said that the N.T. Police followed the "Australian Federal Police and Law Society guidelines", but that he did not believe that they applied in this case. Berkley raised the possibility of having the lawfulness of the warrant, the intended seizure of the computer and the appropriate procedures to extract information from the computer decided upon by this Court prior to any seizure, but this appears not to have been responded to by Heymans. I am told by counsel that there are in fact no guidelines existing between the Law Society of the Northern Territory and the Northern Territory Police relating to searches of solicitors' offices in the Northern Territory, and that there is no reference to this subject in the Northern Territory Police Standing Orders.
[8] Later on 10 January, Heymans searched the internet "for information relating to privilege claimed by persons other than through solicitor's offices" and also sought information "relating to procedures to be followed when privilege is claimed on information and computers". He was unable to find any information of any assistance.
[9] By 10 January, if not before, it was plainly Heymans' intention to do more than merely print off Ochre's financial records. What he wanted to do was to forensically examine the hard drive on the computer to retrieve material deleted from Ochre's financial records. On 10 January he spoke to Detective Senior Constable Fausett ("Fausett") and arranged for him to "image" (or copy) the hard drive, extract the information required, place that information onto discs, and give him the relevant discs. By this arrangement Heymans hoped to obtain a complete record of Ochre's financial records, but nothing else. Later on 10 January he spoke to one of the prosecutors at the office of the Director of Public Prosecutions and told him what his intentions were. I am not told what, if any, advice he received.
[10] On the morning of Thursday 11 January, Heymans and Detective Senior Constable Neil Grant ("Grant") attended at Ochre's office and then met Fraser-Adams, Berkley and Dan Carroll, an inquiry agent assisting Fraser-Adams. The warrant was then handed to Berkley, and after he had read it, to Fraser-Adams. Until then neither Berkley nor Fraser-Adams had seen the warrant, nor were they told what it said, despite requests from Berkley. The warrant, which was issued pursuant to s 117 (2) of the Police Administration Act, provided as follows: