There are times when this happens because the victim doesn't fit that person's expectations for what a rape victim looks like or acts like. There are other times where the person who is supposed to help simply doesn't want to. It might be an investigator who decides that this is a rape that can never result in charges so why waste the time and budget of the police on a lost cause.
Or it could be someone who makes a sloppy mistake regarding evidence or the investigation which dooms the criminal case.
It would be easy to limit this to individuals who interact with rape survivors, but many times the problem is in funding and funding is driven by what citizens communicate as a high priority.
A rape kit with nowhere to be stored is likely to get lost or damaged. An investigator may do everything wrong because of a lack of proper training and not because that person is a lousy human being who shouldn't be an investigator.
Because so much of these needed actions take money, prevention is even more important. If someone isn't victimized the first time they can't be revictimized.
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