I am a qualified social worker with over ten years’ experience of child protection. I completed ESRC-funded PhD research in April 2015 examining social worker decision making in cases involving sexual behaviour between siblings. My interest in this subject grew from four years’ work with Lighthouse, a specialist Barnardo’s service working with children who have displayed harmful sexual behaviour. I am co-author of Allardyce, S. and Yates, P. (2018) Working with children and young people who have displayed harmful sexual behaviour, Edinburgh, Dunedin Academic Press. I have otherwise published several articles on the subject of sibling sexual abuse, victim crossover and risk assessment as well papers concerning work with fathers of at-risk children. I have presented at national and international conferences and seminars on the subject of sibling sexual abuse and working with children who have displayed harmful sexual behaviour, and am a member of the social work judgement and decision making research network. I am an editorial board member for Child Abuse Review and a peer reviewer for this journal, Child Abuse and Neglect, British Journal of Social Work and Journal of Clinical Nursing.