A white couple undergoing IVF treatment have had black twins after a blunder at a fertility clinic. It has sparked an unprecedented legal debate over how it could happen and who the 'lawful' parents are. BBC News Online asked Penney Lewis, a lecturer in law at King's College London, about issues surrounding the case.
A couple have spoken of their utter devastation after a fertility clinic mix-up led to their last viable embryo being implanted into another woman. Debra and Paul, from Bridgend, have received damages of about £25,000 after the error in December 2007.