R v Joinbee

The appellant appealed against a conviction for arson, arguing that the jury's verdict was unreasonable in light of the evidence that electrical sparking could have been the ignition source. The court was required to decide whether the verdict was unreasonable, if the trial judge erred in directing the jury about the meaning of "sets fire to" in section 461(1) of the Criminal Code, and whether the trial judge erred in not directing the jury on causation and in not leaving the excuse of accident to the jury.

The court held that the trial judge's direction to the jury on the meaning of "sets fire to" in s 461(1) was not erroneous. The court found that the trial judge correctly directed the jury that it was sufficient for them to be satisfied the appellant created the breeding ground for the fire by dispersing ignitable liquid in the house. The court held that the trial judge did not err in failing to direct the jury as to causation, as the judge directed the jury that they must be satisfied beyond reasonable doubt that the appellant dispersed the ignitable liquid in the house to be satisfied the appellant set fire to the house. However, the court held that the trial judge erred in not leaving the excuse of accident to the jury in respect of both offences of arson and grievous bodily harm.

The court found that the excuse of accident under s 23(1)(b) of the Criminal Code should have been left to the jury in respect of the offence of grievous bodily harm. The expert evidence posited the source of the ignition was an electrical sparking rather than an act of the appellant, which may have caused a jury to have reasonable doubt as to whether the infliction of grievous bodily harm was an event which occurred by accident. Therefore, the court found that a miscarriage of justice occurred.

The appeal was allowed to the extent of setting aside the conviction on the offence of grievous bodily harm, and ordering a new trial in respect of that offence.