"As regards the method of appointing the ""legislature"", Article 3 (P1-3) provides only for "free" elections "at reasonable intervals", "by secret ballot" and "under conditions which will ensure the free expression of the opinion of the people". Subject to that, it does not create any "obligation to introduce a specific system" (""Travaux Préparatoires"", vol. VII, pp. 130, 202 and 210, and vol. VIII, p. 14) such as proportional representation or majority voting with one or two ballots. Here too the Court recognises that the Contracting States have a wide margin of appreciation, given that their legislation on the matter varies from place to place and from time to time. Electoral systems seek to fulfil objectives which are sometimes scarcely compatible with each other: on the one hand, to reflect fairly faithfully the opinions of the people, and on the other, to channel currents of thought so as to promote the emergence of a sufficiently clear and coherent political will. In these circumstances the phrase "conditions which will ensure the free expression of the opinion of the people in the choice of the legislature" implies essentially - apart from freedom of expression (already protected under Article 10 of the Convention) (art. 10) - the principle of equality of treatment of all citizens in the exercise of their right to vote and their right to stand for election. It does not follow, however, that all votes must necessarily have equal weight as regards the outcome of the election or that all candidates must have equal chances of victory. Thus no electoral system can eliminate "wasted votes". For the purposes of Article 3 of Protocol No. 1 (P1-3), any electoral system must be assessed in the light of the political evolution of the country concerned; features that would be unacceptable in the context of one system may accordingly be justified in the context of another, at least so long as the chosen system provides for conditions which will ensure the ""free expression of the opinion of the people in the choice of the legislature"". "