"Registered intermediaries" help young children testify about sexual abuse.

In the US, "recovered memory" therapists used to convince vulnerable people that they "remembered" being sexually abused while children — but the abuse had not really happened. Some people were imprisoned for years then exonerated.

It might be the case that these "intermediaries" are doing the same thing, some of the time. Or maybe they take care to avoid it. The article does not address the issue.