In re B (A Child) [2009] UKSC 5 was a 2009 ruling by the United Kingdom Supreme Court case concerning child welfare, family law and the correct weighting of factors to be considered by a Family Court in making a residence order. The case was the first substantive appeal to be heard in the new Supreme Court. The parents appealed to the High Court who overturned the decision, describing the previous court as having been 'distracted' by the continuity of the boy's grandmothers care for him, which was ultimately not of paramount importance.