For the operation of a defence of aiding in self-defence under s 273 of the Criminal Code (Qld), it is not necessary that the person being aided held the subjective state of mind required by ss 271 or 272. The aider 'stands in the shoes' of the person assaulted, and the relevant subjective beliefs (reasonable apprehension of death or grievous bodily harm, and belief in the necessity of force) must be those of the aider. This resolves the difficulty that would otherwise arise where the person assaulted was unaware of the assault (e.g., had their back turned, was unconscious, or was an infant).
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