Failure to give sufficient reasons an error of law
R. v. A.F., 2012 ONCA 790 is a good source for the proposition that fairlure to give sufficient reasons is an error of law for appeal purposes:
 We are, however, satisfied that the reasons are inadequate. The reasons are very brief and do not reveal the basis upon which the trial judge sorted through the conflicting evidence to arrive at his result. The absence of adequate reasons is an error in law.