Case C-409/16: Judgment of the Court (First Chamber) of 18 October 2017 (request for a preliminary ruling from the Symvoulio tis Epikrateias — Greece) — Ypourgos Esoterikon, Ypourgos Ethnikis Pedias kai Thriskevmaton v Maria-Eleni Kalliri (Reference for a preliminary ruling — Social policy — Directive 76/207/EEC — Equal treatment of men and women in matters of employment and occupation — Discrimination on the ground of sex — Competition for entry to the police school of a Member State — Law of that state imposing a minimum physical height requirement on all candidates for admission to that competition)