"More particularly, States enjoy considerable latitude to establish in their constitutional order rules governing the status of parliamentarians, including criteria for disqualification. Though originating from a common concern – to ensure the independence of members of parliament, but also the electorate's freedom of choice – the criteria vary according to the historical and political factors peculiar to each State. The number of situations provided for in the Constitutions and electoral legislation of many member States of the Council of Europe shows the diversity of possible choice on the subject. None of these criteria should, however, be considered more valid than any other provided that it guarantees the expression of the will of the people through free, fair and regular elections (see Podkolzina v. Latvia, no. 46726/99, § 33, ECHR 2002-II, and Gitonas and Others v. Greece, judgment of 1 July 1997, Reports 1997-IV, pp. 1233-34, § 39). "