I'm going to give two answers to this question. The short answer is that sometimes we just don't know, and we are concerned about the very severe risk that would be borne by victims in this situation.
The second answer I would like to give is about our approach to this as consular officials and diplomats. We always craft strategies that are aligned with the local context, our depth of understanding of that local context and the actors involved. This is why we invest so heavily in our network of missions abroad as Canada, because the texture you can have through a mission in understanding how a government is likely to react, the range of risks a victim would face and who can apply the right pressure for a positive decision all depend on our analysis.
With respect to lists and generic approaches to consular cases, we would take the view that we are always better to have the scope to determine a situationally specific strategy to meet the objective of alleviating the suffering of the victims.