Social Worker Frankie Nolan worked with police on an investigation into child sexual exploitation
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Social Worker: Exploitation of children "serious public health issue"

Over the past 18 months Operation Owl, the high level police operation into child Sexual exploitation has been trying to protect the victims and identify the perpetrators.

Among those helping the investigation are social workers.

BBC News NI Health Correspondent Marie-Louise Connolly has been speaking to one of them and to a young woman who once was in care.