R v Haydon (No 5)

In R v Haydon (No 5), the accused, Mark Ray Haydon, sought the production of notes relating to communications involving the Director of Public Prosecutions (DPP) and witnesses to be called at his trial. The DPP objected to the production of these documents, claiming they were protected from disclosure by legal professional privilege. The central issue before the court was whether legal professional privilege applied to communications between the DPP and the witness, James Spyridon Vlassakis, and if so, whether there had been a waiver of this privilege.

The court considered whether legal professional privilege applied to communications between the DPP and Vlassakis. It was established that the DPP's role encompasses prosecutorial functions and extends to civil remedies and proceedings. The court held that the DPP, in exercising their powers, should be treated similarly to private legal practitioners, who are subject to the same professional standards and owe the same duties to the court. The rationale behind legal professional privilege is to encourage frank and open communication between clients and their legal advisers, facilitating the administration of justice. However, the court noted that this privilege must be balanced against the interests of fairness to the opposing party.

The court ultimately concluded that legal professional privilege did apply to the communications between the DPP and Vlassakis. However, the court found that there was no waiver of this privilege. The mere fact that Vlassakis gave evidence did not result in the loss of privilege for communications relating to that evidence. The court rejected the argument that any implied waiver of privilege occurred because relevant information had already been disclosed. The court held that the accused was not entitled to inspect the notes in question.

The court's reasoning was grounded in the recognition that the DPP and their officers are subject to the same professional standards as private practitioners, thereby attracting the principles of legal professional privilege. The court emphasised that the privilege was not lost simply because the witness had testified. The court's decision was in line with the principle that the confidentiality of communications with legal advisers is crucial for the proper functioning of the justice system.