Errors of Law:

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1. it is an error of law to make a finding of fact for which there is no supporting evidence. However, a conclusion that the trier of fact has a reasonable doubt is not a finding of fact for the purposes of this rule. Rather, it is a conclusion that the standard of persuasion beyond a reasonable doubt has not been met;

2.  the legal effect of findings of fact or of undisputed facts may give rise to an error of law;

3. an assessment of the evidence based on a misapprehension or misdirection concerning a legal principle is an error of law; and

4. a failure to consider all the evidence in relation to the ultimate issue of guilt or innocence is also an error of law: R v Chapman, 2016 ONCA 310 at para 14; see also para 21 (citing R v JMH, 2011 SCC 45, [2011] 3 SCR 197)