The accused was charged with impaired driving after being observed operating a motor vehicle errationally on July 8, 2015.
She provided breath samples showing blood alcohol concentrations of 267 and 288 mg per 100 ml of blood.
The defence raised the issue of automatism arising from parasomnia (sleepwalking), arguing that the accused's actions were involuntary.
The court found that the accused had a documented history of parasomnia episodes triggered by stress and anxiety, had been fatigued from a long drive, had not used her sleep apnea device, and had ingested sleep medication.
Expert evidence and observations by the arresting officer supported the conclusion that the accused was in a dissociative state.
The court found the automatism to be a disease of the mind and rendered a verdict of Not Criminally Responsible.