Key legal question
Whether the cantonal appellate court wrongly refused additional evidence under Art. 389 CPP
Extracted holding
The refusal of the requested evidence was not unlawful; the court could anticipate the evidentiary value of the new materials and reject them as irrelevant or incapable of changing the outcome.
Extracted reasoning
Art. 389 CPP allows supplementary evidence only when necessary. The appellant's criticisms were largely appellatory and did not show arbitrariness in the court's anticipatory assessment.