Bienstein, Re, Ex parte - Re Keelty

This matter concerned an application by Mr. Bienstein for a writ of prohibition directed to Mr. Keelty, the Commissioner of Police, and the Commonwealth Director of Public Prosecutions. The dispute arose from an investigation by the Australian Federal Police into alleged breaches of the *Crimes Act 1914* (Cth) and the *Public Service Act 1922* (Cth). Mr. Bienstein sought to prevent the respondents from continuing their investigation and from laying any further charges against him. The application was heard by McHugh J in chambers.

The primary legal issue before the Court was whether the investigation and potential prosecution of Mr. Bienstein were being conducted for an improper purpose, specifically for the purpose of political persecution or harassment, thereby constituting an abuse of process. Mr. Bienstein contended that the investigation was not a genuine attempt to enforce the law but rather a politically motivated exercise designed to damage his reputation and career.

McHugh J considered the principles governing the exercise of the Court's supervisory jurisdiction over the actions of law enforcement and prosecution bodies. His Honour affirmed that while courts have a broad power to prevent abuses of process, the threshold for demonstrating such an abuse is high. The onus was on Mr. Bienstein to establish, on the balance of probabilities, that the investigation was being pursued for an improper purpose. McHugh J found that the evidence presented did not satisfy this onus, concluding that the investigation, while potentially having political ramifications, was not demonstrably being conducted for an improper purpose as contemplated by the law.

Consequently, the application for a writ of prohibition was dismissed.