Judgment of the Court (Fifth Chamber) of 6 June 2019.#P. M. and Others v Ministerraad.#Request for a preliminary ruling from the Grondwettelijk Hof.#Reference for a preliminary ruling — Procedures for the award of public works contracts, public supply contracts and public service contracts — Directive 2014/24/EU — Article 10, (c), and (d)(i), (ii) and (v) — Validity — Scope — Exclusion of arbitration and conciliation services and of certain legal services — Principles of equal treatment and subsidiarity