Kernrechtsfrage
Whether the Geneva court arbitrarily refused evidence on alleged procedural irregularities in Turkey, especially the refusal to hear witnesses.
Extrahierter Entscheid
The refusal was not arbitrary and did not violate the right to be heard because the canton court could rely on the Turkish judgments and make an anticipatory assessment of evidence.
Extrahierte Begründung
The record showed both parties participated in Turkey with counsel and could defend themselves; Swiss public policy does not require witness hearings or forbid a decision on documents alone.