R v Demack; Ex parte

The applicant, Demack, sought an order of prohibition against the respondent, the Director of Public Prosecutions, to prevent the prosecution of Demack for an offence under the Broadcasting and Television Act 1942 (Cth). The dispute concerned the validity of the prosecution itself, with Demack arguing that the Director of Public Prosecutions lacked the statutory authority to institute the proceedings. The matter came before the High Court of Australia.

The central legal issue before the High Court was whether the Director of Public Prosecutions had the power to institute a prosecution for an offence against the Broadcasting and Television Act 1942 (Cth) in the absence of a specific direction from the Attorney-General. Demack contended that such a prosecution could only be commenced with the Attorney-General's explicit authorisation.

The High Court, in a majority decision, held that the Director of Public Prosecutions did possess the authority to institute prosecutions under the Broadcasting and Television Act 1942 (Cth) without a specific direction from the Attorney-General. The Court interpreted the relevant provisions of the Act and the Director of Public Prosecutions Act 1968 (Cth) to mean that the Director's general power to prosecute extended to all Commonwealth offences, including those under the Broadcasting and Television Act, unless expressly limited. The principle applied was that statutory powers are to be construed broadly unless a contrary intention is clear.

The application for prohibition was dismissed.