“123. Nevertheless, as to the substance of the right of association enshrined in Article 11, the Court takes into consideration the totality of the measures taken by the State concerned in order to secure trade-union freedom, subject to its margin of appreciation (see Demir and Baykara v. Turkey [GC], no. 34503/97, § 144,12 November 2008 ). An employee or worker should be free to join, or not join a trade union without being sanctioned or subject to disincentives (see Associated Society of Locomotive Engineers and Firemen (ASLEF) v. the United Kingdom, no. 11002/05, § 39, ECHR 2007 ...). The wording of Article 11 explicitly refers to the right of “everybody”, and this provision obviously includes a right not to be discriminated against for choosing to avail oneself of the right to be protected by trade union, also given that Article 14 formed an integral part of each of the Articles laying down rights and freedoms whatever their nature (see National Union of Belgian Police, cited above, § 44). Thus the totality of the measures implemented to safeguard the guarantees of Article 11 should include protection against discrimination on the ground of trade union membership which, according to the Freedom of Association Committee, constitutes one of the most serious violations of freedom of association capable to jeopardize the very existence of a trade union (see paragraph 107 above). 124. The Court finds crucially important that individuals affected by discriminatory treatment should be provided with an opportunity to challenge it and to have the right to take legal action to obtain damages and other relief. Therefore, the States are required under Articles 11 and 14 of the Convention to set up a judicial system that would ensure real and effective protection against the anti-union discrimination. 125. The Court thus has to consider whether sufficient measures were taken by the authorities to protect the applicants from alleged discriminative treatment on the ground of their choice to join the trade-union.”