CAAMAÑO VALLE v. SPAIN JUDGMENT Protocol No. 1 do not curtail the rights in question to such an extent as to impair their very essence and deprive them of their effectiveness; that they are imposed in pursuit of a legitimate aim; and that the means employed are not disproportionate (see Mathieu-Mohin and Clerfayt, cited above, § 52, and Selahattin Demirtaş, cited above, § 387). 57. In addition, any conditions imposed must not thwart the “free expression of the people in their choice of legislature” (see Selahattin Demirtaş, cited above, § 388). In other words, they must reflect, or not run counter to, the concern to maintain the integrity and effectiveness of an electoral procedure aimed at identifying the will of the people through universal suffrage. Any departure from the principle of universal suffrage risks undermining the democratic validity of the legislature thus elected and the laws that it promulgates. The exclusion of any groups or categories of the general population must accordingly be reconcilable with the underlying purposes of Article 3 of Protocol No. 1 (see, among other authorities, Hirst v. the United Kingdom (no. 2) [GC], no. 74025/01, § 62, ECHR 2005 IX, and Scoppola v. Italy (no. 3) [GC], no. 126/05, § 84, 22 May 2012). More specifically, election results should not be obtained through votes cast in a manner that runs counter to the fairness of elections or the free expression of the will of voters. 58. The Court has stated that “since the Convention is first and foremost a system for the protection of human rights, it must have regard to the changing conditions within the respondent State and within Contracting States generally and respond, for example, to any emerging consensus as to the standards to be achieved. In this regard, one of the relevant factors in determining the scope of the authorities’ margin of appreciation may be the existence or non-existence of common ground between the laws of the Contracting States” (see Sitaropoulos and Giakoumopoulos v. Greece [GC], no. 42202/07, § 66, ECHR 2012). 59. The Court reiterates that the presumption in a democratic State must be in favour of the inclusion of all, and that universal suffrage is the basic principle (see Hirst (no. 2), cited above, § 59; Sitaropoulos and Giakoumopoulos, cited above, § 67, and Scoppola (no. 3), cited above, § 82). This does not mean, however, that Article 3 of Protocol No. 1 guarantees to persons with a mental disability an absolute right to exercise their right to vote. Under this provision, these persons are not immune to limitations of their right to vote, provided that the limitations comply with the conditions set out above (see paragraphs 58 and 59 above). It is not for the Court to express an opinion on whether Article 29 of the CRPD imposes stricter obligations on the States that are parties to that convention. For the purpose of the interpretation of Article 3 of Protocol No. 1, the Court notes the fact that there is at present no consensus among the States Parties to Protocol No. 1 in the sense of an unconditional right of persons with a mental disability to exercise their right to vote. On the contrary, a majority 20

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