For s 273 (aiding in self-defence) to be left to the jury, there must be evidence of an actual assault upon the person being aided, or evidence capable of supporting an honest and reasonable belief in such an assault; a complainant remaining motionless on a driveway while the person allegedly being aided is safely inside a house does not raise the defence. For s 267 (defence of dwelling), the defence is not raised where the accused's own statements indicate he did not know what the complainant was trying to do and there is no evidence the complainant attempted to enter the dwelling.
The full text is available to signed-in members, including the 1 later case that cites this judgment.
1 of the 1 citing case carries a classified treatment. How each court treated it is available to signed-in members.