Here's the Supreme Court Judgement.
http://scc.lexum.org/en/2012/2012scc47/2012scc47.html
The court also ruled on a case where a woman who had HIV with low viral load (no HIV detected in blood tests) who had an initial sexual encounter with a man prior to her disclosure of her HIV status. They broke up then got back together and then 4 years later they broke up where he then launched a criminal complaint.
http://scc.lexum.org/en/2012/2012scc48/2012scc48.html