The present is a case where the claim to public interest immunity, or
privilege, was taken as a class, and was unsupported by any affidavit or any evidence to the effect that any person supplied information on an undertaking or promise of confidentiality, or otherwise detailing the public interest considerations. That it was dealt with as a 'class claim' rather than as a 'contents claim', that is, one to withhold particular documents, raises no difficulty. ...
It was also a claim made without the support of any affidavit. Again that is not unusual, nor is it a circumstance disentitling the claimant to an immunity from production ..., although it is usually more satisfactory for the Court to have an evidentiary basis upon which it might consider the claim.
It is clear from the authorities previously cited that claims to public interest immunity are not to be narrowly confined to departments or organs of central government. In appropriate cases, I am of the view that the Bar Council is entitled to make such a claim. However, where it does take that course, then it requires the balancing exercise referred to in the authorities and in the passage I have quoted from Alister v The Queen, to be undertaken. That involves weighing the detriment to the public interest involved in disclosure, against the detriment to the public interest in non- disclosure. ...
In the weighing exercise, I am satisfied that there is a substantial public interest in the Bar Council receiving complaints about misconduct of barristers, in being able to speak freely with such complainants, in being able to fully investigate those complaints and in appropriate cases being able to gather additional evidence. This is part and parcel of a public interest that it effectively carry out the statutory functions assigned to it, and that the legislation as a whole be implemented. The public interest is obvious and hardly needs stating. The public are to be protected from barristers who are guilty of professional misconduct, or unsatisfactory professional conduct, and are entitled to have effective orders made not only for the disciplining of those barristers who offend, but to have their losses made good. These are the ends the Act serves, and it provides an effective means for discipline and compensation.
On the other side, there is the public interest in the eliciting of truth in a disciplinary proceeding, and in making all relevant material available to both parties. An interference with a practitioner's right to practice is important, and disciplinary proceedings against a barrister are akin to criminal proceedings, particularly in that the orders which may be made include a fine, and/or reprimand, quite apart from orders for cancellation or suspension of the right to practice and for remedying loss.[33]