Al Shakarji v Mulhern

The case of Al Shakarji v Mulhern involved the appellant, Al Shakarji, contesting a conviction for speeding issued by the Magistrates Court at Bowen. The dispute centred around the admissibility of evidence obtained via a speed detection device and the restrictions imposed on cross-examining the certificate provided by the prosecution. The appellant argued that the trial magistrate improperly limited the scope of cross-examination regarding the device’s calibration and operation, and questioned the validity of a Google Earth photograph used as evidence. The court was tasked with determining whether these issues warranted a retrial.

The legal issues before the court encompassed the proper use and admissibility of evidence obtained from a speed detection device, specifically the limitations on cross-examination of the device's calibration and operation. Additionally, the court had to consider the admissibility of a Google Earth photograph in the absence of formal proof of its accuracy and relevance. The appellant’s challenge to the statutory certificates and their impact on the trial's fairness and the ability to dispute the evidence presented were also central to the case.

The court found that the trial magistrate had indeed unduly restricted the scope of cross-examination on the speed detection device and the certificate, which prejudiced the appellant's case. The limitations on questioning the device's calibration and operation meant that the appellant could not sufficiently challenge the evidence's reliability. Furthermore, the court held that the Google Earth photograph, which was not formally proven, was inadmissible as it did not meet the required standard of evidence. These errors necessitated a retrial before a different magistrate to ensure a fair trial. Consequently, the appeal was allowed, the conviction was quashed, and the matter was remitted to the Magistrates Court at Bowen for retrial.