I don't think I'm able to describe or give you an example of how that might be applied, but I'll tell you how it's utilized in practice.
IRPA's admissibility framework is a fully principles-based framework. It doesn't look to designate specific atrocities, or specific regimes. It looks at the activities of the individual, and admissibility is formed on the basis of those. Regardless of Canada's relationship vis-à-vis the country where the human rights violation may have occurred, if there is a known, documented circumstance in which an individual is implicated in a human rights violation, the admissibility framework stands to render that individual inadmissible to Canada.