In 1957 eleven year old Moira Anderson went missing from her home in Lanarkshire. Her body was never found but many people believe she was abducted and murdered. Sandra Brown has become convinced that her own father, a convicted paedophile, was responsible for Moira's murder, and since his death has campaigned for documents to be released that might shed light on the case some fifty years on. She has also set-up the Moira Anderson foundation which helps children and families affected by child sexual abuse and has been awarded an OBE for her services to child protection. She talks to Martha about her fight to secure justice for Moira and her family.