This commentary explores the decision of House of Lords in Re B (Children) (Sexual Abuse: Standard of Proof). In discarding the gloss imposed by the earlier decision of Re H (Minors) (Sexual Abuse: Standard of Proof) to the standard of proof to be applied in care proceedings, the House of Lords has acted in a way that is unreservedly to be welcomed. The commentary also examines their Lordships' rejection of the argument that the threshold criteria could be satisfied on ‘evidence' that raises a real possibility of significant harm but which cannot be proven to the level of ‘fact' and its implications for child protection.