Dymock v The State of Western Australia

The case of Dymock v The State of Western Australia involved an appeal against the sentence imposed on the appellant following his conviction as an accessory after the fact to murder. The appellant was found to have provided assistance to the principal offenders in the context of a murder where there was a reasonable possibility that the victim was still alive at the time of the assistance. The central legal issues before the court were whether an accused could be an accessory after the fact to murder before the victim's death and what level of knowledge was required of the accused regarding the commission of the offence by the principal offenders. These issues necessitated a construction of section 10(1) of the Criminal Code (WA).

In addressing these issues, the court referenced the common law principles and statutory history to interpret the relevant provision. The court highlighted the common law position that a person would not be an accessory after the fact to homicide unless the victim had died at the time of the assistance. The court also noted that an accessory must know that a felony has been committed. The court was required to determine how these principles applied to the statutory provision, specifically focusing on the phrase "to his knowledge, guilty of an offence." The court concluded that for a person to be an accessory after the fact, they must have knowledge of the principal offender's guilt at the time of providing assistance. This knowledge requirement was deemed essential to the statutory definition, aligning with the common law precedents.

The court found that the appellant could not be an accessory after the fact to the murder before the victim's death, as the assistance provided was given while the victim was still alive. The appellant's knowledge of the commission of the offence by the principal offenders was also insufficient under the statutory provision. Consequently, the court quashed the conviction and ordered a retrial, with directions to consider the proper legal standards for the charge of being an accessory after the fact to murder.