R v Thomas (No 4)

In the case of R v Thomas (No 4), the respondent, Thomas, appealed against his convictions and sought a retrial based on alleged misapprehensions of fact by the original trial judge. The dispute was heard by the High Court of Australia, which had jurisdiction to hear the appeal under the Australian Constitution. The primary issue before the court was whether the order for a retrial was based on a misapprehension of facts, and if the evidence in question was unknown and unknowable at the time of the trial. The court also considered whether information known to the Australian Security Intelligence Organisation (ASIO) was also known or capable of being ascertained by the Australian Federal Police (AFP) and the Director of Public Prosecutions (DPP).

The court examined the role of ASIO in the criminal investigation, considering whether ASIO was an active participant or if its activities were conducted in parallel with the AFP. The court held that ASIO and AFP were not engaged in a joint prosecution, and therefore, ASIO's knowledge did not automatically transfer to the Crown. The statutory constraints on ASIO officers' dissemination of information were also considered, as well as the knowledge of communication with a journalist. The court found that the information did not relate or appear to relate to the commission of an indictable offence, in line with the principles set out in R v Blackledge [1996] 1 Cr App R 326. The court referred to relevant sections of the Australian Security Intelligence Organisation Act 1979 (Cth) to support its reasoning.

The High Court found that the order for a retrial was indeed based on a misapprehension of facts, and the evidence in question was unknown and unknowable at the time of the trial. Consequently, the court quashed Thomas' convictions and ordered a retrial. The court also considered the application to rescind the order for a retrial, ultimately determining that the application should be dismissed. The final orders of the court included the quashing of Thomas' convictions, the ordering of a retrial, and the dismissal of the application to rescind the order for a retrial.