What is the current state of the law in Ontario on the basis of discretion of the trial court in assessing the probative value of evidence?

That being said, "[u]nder Evidence Code section 352, the trial court enjoys broad discretion in assessing whether the probative value of particular evidence is outweighed by concerns of undue prejudice, confusion or consumption of time. [Citation.] Where, as here, a discretionary power is statutorily vested in the trial court, its exercise of that discretion 'must not be disturbed on appeal except on a showing that the court exercised its discretion in an arbitrary, capricious or patently absurd manner that resulted in a manifest miscarriage of justice. [Citations.]' " (People v. Rodrigues (1994) 8 Cal.4th 1060, 1124-1125.)