Case C-528/13: Judgment of the Court (Fourth Chamber) of 29 April 2015 (request for a preliminary ruling from the Tribunal administrative, Strasbourg — France) — Geoffrey Léger v Ministre des Affaires sociales, de la Santé et des Droits des femmes, Établissement français du sang (Reference for a preliminary ruling — Public health — Directive 2004/33/EC — Technical requirements relating to blood and blood components — Blood donation — Eligibility criteria for blood donors — Criteria for permanent or temporary deferral — Persons whose sexual behaviour puts them at a high risk of acquiring severe infectious diseases that can be transmitted by blood — Man who has had sexual relations with another man — Charter of Fundamental Rights of the European Union — Articles 21(1) and 52(1) — Sexual orientation — Discrimination — Justification — Proportionality)