No concealed carry in Canada.
In extreme cases a Judge will give a permit for 2 weeks or so if someone`s life is in extreme danger as being threatened .
If you shot someone you`d be charged with assualt, murder, unsafe storage, discharging a firearm with a 1000 ( note sure of exact distance) meters of a dwelling,etc,etc.
Even if it was *clearly* shown,at trial,that the shooter had *good* reason to fear that he was in *serious* danger of death at the hands of,let's say,a proven psychopathic killer? Would Canadian law allow such a defense and,if it was,would a judge allow the use of that defense? (If the law allows it one would think that the judge might allow it if there was strong evidence that it was true).