Staff at a Birmingham nursery where a toddler was raped raised concerns about paedophile Paul Wilson's "special relationship" with the child.
A review into the case by the city's Safeguarding Children Board also found that students on a local childcare course complained about a male member of staff "taking children into the adult toilet on his own and sitting them on his lap".
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Gary Davies, 50, is believed to have known the victim, 56.
The couple, married for more than half a century, had recently retired to Mount Pleasant.
Four EU countries in eastern Europe refused to take part in the meeting