M v Warwickshire County Council [2007] EWCA Civ 1084, [2007] All ER (D) 14 (Nov)
A discretion arises in which the welfare of the child and the prospect of success should both be weighed and the former is not paramount in an application for leave to revoke a placement order, based on a change of circumstances, under the Adoption and Children Act 2002, s 24(3).