Sirajuddin v Ziino

In the case of Sirajuddin v Ziino, the appellant, Sirajuddin, contested his conviction for driving with a prescribed concentration of alcohol in his breath, as defined by the Road Safety Act 1986. The matter was brought before the Supreme Court of South Australia, which was required to determine whether the preliminary breath test conducted on the appellant was carried out using a device prescribed by the Act and whether the certificate of breath analysis was sufficient to prove the prescribed concentration of alcohol in the appellant's breath. The court also needed to examine the meaning of the term "exhaled air" within the context of the Act and whether it equated to the term "breath."

The court began by addressing the necessity of proving that the preliminary breath test was conducted by a prescribed device. The appellant argued that the prosecution failed to establish this element, but the court found that the device used was indeed prescribed as required by the Act. The court then considered whether the certificate of breath analysis was sufficient to prove the prescribed concentration of alcohol in the appellant's breath. The court held that the certificate was valid and reliable evidence under the Act. Additionally, the court examined the meaning of "exhaled air" and concluded that it was synonymous with "breath" within the context of the Act. This interpretation aligned with the purpose of the legislation and ensured consistency with other provisions within the Act.

Ultimately, the Supreme Court of South Australia upheld the appellant's conviction, finding that the preliminary breath test was conducted using a prescribed device and that the certificate of breath analysis was sufficient to prove the prescribed concentration of alcohol in the appellant's breath. The court's interpretation of "exhaled air" as being synonymous with "breath" was consistent with the purpose of the Road Safety Act 1986. The court dismissed the appeal, and the conviction remained in place.