Key legal question
Whether refusing to hear witness G. through the cantonal court and refusing an expert report violated A.'s right to be heard under the LDIP.
Extracted holding
No violation was shown. The witness concerned only later events deemed irrelevant, and the proposed expert report would have addressed matters the arbitrator had already found legally irrelevant.
Extracted reasoning
The Federal Supreme Court held that evidence may be refused when it is not relevant or, under anticipatory assessment, cannot affect the outcome. The appellant merely repeated appellate-style arguments and did not show an arbitrariness-based public-policy violation in the anticipatory assessment.