Rutkowski v Director of Public Prosecutions

Rutkowski appealed to the New South Wales Court of Appeal against a conviction for driving under the influence of alcohol. The Director of Public Prosecutions was the respondent. The central dispute concerned the admissibility of evidence obtained from a breath analysis.

The Court of Appeal was required to determine whether the breath analysis evidence was admissible, notwithstanding that the police officer who conducted the analysis had not been formally sworn in as a constable at the time of the offence. The appeal also raised questions about the proper interpretation of the relevant provisions of the *Traffic Act 1909* (NSW) concerning the qualifications and authority of officers conducting breath analyses.

The Court of Appeal held that the evidence was admissible. It reasoned that the officer, although not formally sworn, had been appointed and was acting in the capacity of a police officer at the time of the breath analysis. The Court emphasised that the statutory requirements for conducting a breath analysis were concerned with the officer's authority to act as a police officer, rather than the precise formality of their swearing-in. The principles of statutory interpretation favoured a functional approach, focusing on whether the officer was lawfully empowered to perform the duties of a police constable.

The appeal was dismissed, and the conviction was upheld.