Case C-171/16: Judgment of the Court (Fifth Chamber) of 21 September 2017 (request for a preliminary ruling from the Sofiyski Rayonen sad — Bulgaria) — Trayan Beshkov v Sofiyska rayonna prokuratura (Reference for a preliminary ruling — Area of freedom, security and justice — Framework Decision 2008/675/JHA — Scope — Taking into account, in the course of new criminal proceedings, a previous conviction handed down in another Member State, in order to impose an overall sentence — National procedure for prior recognition of that conviction — Altering the arrangements for enforcing the sentence imposed in the other Member State)