There is virtually nothing at stake. This inquiry will not bring these women back and will not resolve the issue for family members. The vast majority of the women who are the focus of this enquiry made lifestyle choices that both put them at risk and left a poor trail of evidence for police to apprehend the perpetrators (assuming there is one).
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Ms Renzetti's examples show a system that is addressing its flaws. There have been charges (as she notes) and a review of policies has begun as a result of the woman who was incarcerated in order to ensure she testified. That is how errors and crimes are corrected.