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The ruling released Friday says Dustin Kinamore was 22 when he met the 16-year-old complainant in May 2020, and they exchanged sexualized social media messages that became key pieces of evidence at trial.

The ruling says the messages were introduced by the Crown to show the complainant wasn't interested in a sexual relationship with Kinamore — but the trial judge didn't hold an admissibility hearing, highlighting "uncertainty" around rules governing evidence about a complainant's sexual history.

The decision says the messages were evidence of sexual inactivity, and confusion about their use in the trial arose because they were introduced by the prosecution rather than the defence. 

The court ruled that evidence about a complainant's past sexual inactivity is presumed inadmissible, quashed Kinamore's conviction and ordered a new trial because the messages were used without a hearing to precisely determine relevance. 

The ruling says so-called "sexual history evidence" is presumed inadmissible because it can perpetuate "myths and stereotypes" about complainants. 

"The increasing complexity of sexual offence trials in Canada poses a challenge to our overburdened criminal justice system. One source of complexity lies in the application of the rules that govern evidence of a complainant’s sexual history," Chief Justice Wagner wrote, with the other judges agreeing. 

"Although these evidentiary rules are essential to eliminate discriminatory myths and stereotypes from the fact-finding process and safeguard the dignity, privacy, and equality interests of complainants, uncertainty about their scope and procedural requirements has caused unnecessary confusion and disruption." 

This report by ¹ú²úÓÕ»ó¸£Àû was first published June 13, 2025.