R v Tennant

The Director of Public Prosecutions (DPP) sought permission to appeal against a directed acquittal of the respondent, Mr. Tennant, who had been charged with trafficking in a large commercial quantity of a controlled drug, specifically cannabinoid. The central dispute revolved around the interpretation of the relevant legislation, particularly whether the plant material in question constituted a controlled drug as defined by the regulations, and whether it could be considered an "analogue" or a "controlled drug contained in a mixture." The case was heard by Doyle CJ, Duggan and David JJ.

The legal issues before the court were whether the term "cannabinoid" in the relevant schedule of the regulations referred to the chemical components of the cannabis plant or to the plant material itself, and consequently, whether the harvested and dried cannabis plant material constituted a controlled drug for the purposes of the trafficking offence. Further questions arose regarding whether the process of keeping and drying harvested cannabis plant material could be considered taking part in the process of sale of a controlled drug, and the implications of the weight of the material being measured after drying.

The court determined that the trial judge had erred in interpreting the relevant item in the regulations as referring solely to cannabinoid as a chemical component. Applying ordinary principles of statutory interpretation, the court held that the item should be read to encompass dried plant material, giving effect to all words within the provision and avoiding surplusage. The dash following "cannabinoid" was interpreted as introducing an explication of the term, meaning "cannabinoid in the form of dried plant material." However, despite finding this error, the court ultimately dismissed the DPP's appeal.

The court concluded that the case was not a suitable vehicle for definitively resolving the complex legal issues raised, including the meaning of "analogue" and "controlled drug in a mixture," due to uncertainties in the evidence presented. While permission to appeal was granted to address the arguable error in interpretation, the appeal was dismissed because the available evidence did not permit a full assessment of the interaction between the statutory concepts.