Jurisdiction — Extraterritorial jurisdiction — Applicants complaining that Turkey violating rights of their relatives under European Convention on Human Rights, 1950 — Ruling on admissibility — Whether issue of jurisdiction requiring examination at this stage — Concept of jurisdiction — Whether Turkey exercising effective overall control of entire area of northern Iraq — Whether exercising effective control over particular portion of that territory — Available evidence — Whether establishing beyond reasonable doubt that Turkish armed forces conducting military operations in area where applicants’ relatives killed — Whether applicants’ relatives within jurisdiction of Turkey within meaning of Article 1 of European Convention on Human Rights, 1950