The accused, an OPP officer, was charged with attempted murder, arson, and administering a noxious substance after a fire broke out in her daughter-in-law's bedroom.
The Crown alleged the accused drugged the victim's drink with diphenhydramine during a visit to discuss a bitter custody dispute, then set fire to the bedroom closet once the victim was asleep.
The court applied the W.(D.) framework to assess credibility and expert evidence regarding the fire's origin and the toxicology results.
The accused was found guilty of arson and administering a noxious substance, but acquitted of attempted murder as the specific intent to kill was not proven beyond a reasonable doubt.
