S47 refers to a specific section of the Children Act 1989 in the United Kingdom. This section outlines the responsibilities of local authorities in safeguarding and promoting the welfare of children. It emphasizes the importance of acting in the best interests of the child, ensuring their safety and well-being. Under S47, local authorities must investigate when there are concerns about a child's welfare, particularly if they are at risk of harm. This process involves gathering information and assessing the situation to determine the appropriate actions needed to protect the child and support their family.