The Mail & Guardian published a series of articles ("Oilgate") alleging that public money (R15 million) was diverted from PetroSA through Imvume Management to the ANC ahead of the 2004 elections. The articles also alleged that Imvume was effectively a front for the ANC, that state resources were used to support Imvume's Iraq oil ventures involving officials from the Department of Minerals and Energy, and that a R1 billion tender from the Strategic Fuel Fund to Imvume was improperly awarded. Members of Parliament requested the Public Protector (Adv Mushwana) to investigate. The Public Protector conducted an investigation and issued a report exonerating the public entities and functionaries, finding no impropriety and discrediting the newspaper as publishing material that was "factually incorrect, based on incomplete information and documentation, and comprised unsubstantiated suggestions and unjustified speculation." The Mail & Guardian, its editor, and two journalists brought review proceedings challenging the adequacy of the investigation.
Appeal partially upheld. Paragraphs 2 and 3 of the High Court order (directing the Public Protector to investigate and report afresh in specific terms) were set aside. Save for that, the appeal was dismissed with costs. The effect was that the Public Protector's report remained set aside on review.
An investigation by the Public Protector must be conducted with an open and enquiring mind. An investigation that is not conducted with an open and enquiring mind is no investigation at all. This requires that the Public Protector: (1) be open to all possibilities and reflect upon whether the truth has been told; (2) not be unduly suspicious but also not unduly believing; (3) ask whether the pieces fit into place and if not, ask questions and seek out information until they do; (4) use the extensive investigatory powers conferred by the Public Protector Act to compel evidence where necessary; (5) not summarily dismiss information because sources are undisclosed but rather verify the information using available powers; (6) test and corroborate explanations received, regardless of the status of the person providing them; and (7) ensure public confidence that the truth has been discovered, not merely that an onus has not been discharged. The Public Protector's investigatory mandate extends to investigating bilateral transactions involving public money on both sides of the transaction, not merely the conduct of public bodies.
Nugent JA made several important observations obiter: (1) The court expressed no view on the source of the power to review the Public Protector's work, assuming without deciding that common law review principles applied; (2) The court did not decide definitively whether the receipt of public money by private entities fell within the Public Protector's mandate under sections 6(4)(a)(iii) or 6(5)(c) of the Act, though suggesting it likely did; (3) The court observed that truth and deceit know no status or occupation - integrity is determined by the material, not the speaker's position; (4) The court noted the importance of the Public Protector as "a last defence against bureaucratic oppression, and against corruption and malfeasance in public office that is capable of insidiously destroying the nation"; (5) Regarding orders directing fresh investigations, courts should not make orders exposing litigants to contempt unless clear and unambiguous, and should not supplant the Public Protector by directing with precision what is required; (6) The court clarified the admissibility of hearsay evidence in review proceedings - statements are admissible to prove they were made (relevant to adequacy of investigation) even if not admissible to prove their truth.
This case is of fundamental importance in South African administrative and constitutional law. It establishes clear principles regarding the Public Protector's investigatory duties and the standard of review applicable to such investigations. The judgment emphasizes that: (1) The Public Protector has a pro-active investigatory mandate, not merely an adjudicative one; (2) An investigation must be conducted with an "open and enquiring mind" - this is the minimum threshold and indispensable requirement; (3) The Public Protector has sweeping powers to compel information from any person and should use them; (4) Information from undisclosed sources should not be summarily dismissed but should prompt investigation using the Public Protector's powers; (5) Responses from officials, regardless of rank, must be tested and corroborated, not accepted at face value; (6) The Public Protector must inspire public confidence that the truth has been discovered; (7) The office is an "indispensable constitutional guarantee" against corruption and maladministration. The case reinforces the independence and importance of Chapter 9 institutions while subjecting their work to meaningful judicial oversight.