"Having examined the relevant electoral legislation of several Contracting States, the Court comes to the conclusion that there is no uniform system for the composition and functioning of electoral administrative bodies in Europe (see paragraphs 58-69 above). There is a diversity of possible choices in this area. Those choices vary in accordance with the historical and political factors specific to each State. The Court therefore considers that the Contracting States should indeed be granted a margin of appreciation in the sphere of organising their electoral administrations, as long as the chosen system provides for conditions which ensure the “free expression of the opinion of the people in the choice of their legislature” (see, mutatis mutandis, Podkolzina v. Latvia, no. 46726/99, § 33, ECHR 2002-II). "