The appellant was convicted of aggravated sexual assault in 2013 for non-disclosure of her HIV-positive status during condomless vaginal intercourse, which the trial judge found vitiated consent due to a realistic possibility of transmission.
On appeal, fresh expert evidence was admitted, demonstrating that with antiretroviral treatment (ART) and an undetectable viral load, the risk of HIV transmission is effectively zero.
The Court of Appeal found that this new scientific understanding undermined the trial judge's conclusion regarding the realistic possibility of transmission in the appellant's specific circumstances.
Consequently, the appeal was allowed, the conviction was set aside, and an acquittal was entered.
The court declined to make a broader statement on the "realistic possibility of transmission" threshold beyond the specific facts of the case, citing institutional concerns and limitations of the fresh evidence record regarding multiple sexual contacts or viral loads that are suppressed but not undetectable.