UK Court Can't Distinguish Paternity in Twins Case

A British court has ruled that it is impossible to determine which of two identical twin brothers fathered a woman's child, leaving the child's legal parentage unresolved for now despite DNA evidence confirming one of the men as the biological parent.

The case, heard by the Court of Appeal in London, centers on a child referred to as P to protect the family's privacy. The mother had sexual relations with the unnamed twin brothers within four days of each other during the month of conception. Standard paternity testing, which examines DNA sequences shared between the child and potential fathers, proved inconclusive in identifying the specific parent because identical twins share nearly identical genetic profiles, originating from the same fertilized egg.

Initially, one twin was registered as the father on P's birth certificate following a prior court finding. However, the mother and the other twin challenged this, seeking to establish his parental responsibility. A family court judge, Madeleine Reardon, had previously determined that it was equally likely either brother was the father, based on the timing of the encounters. She declined to remove the named twin from the birth...