15Further, according to the Court's case-law (see, in particular, Case C-159/90Society for the Protection of Unborn Children Ireland [1991] ECR I-4685, paragraph 31), where national legislation falls within the field of application of Community law the Court, in a reference for a preliminary ruling, must give the national court all the guidance as to interpretation necessary to enable it to assess the compatibility of that legislation with the fundamental rights — as laid down in particular in the Convention — whose observance the Court ensures. However, the Court has no such jurisdiction with regard to national legislation lying outside the scope of Community law.