Article 336-1 of the French Civil Code
Where a civil registrar is in possession of a prenatal acknowledgement of paternity whose statements concerning its author are contradicted by the information concerning the father communicated to him by the declarant, the civil registrar with jurisdiction under article 55 shall draw up the birth record in the light of the information provided by the declarant. He immediately notifies the public prosecutor, who raises the paternity dispute on the basis…