Kernrechtsfrage
Whether the cantonal court acted arbitrarily by holding that the defendant had waived his complaint about the missing witness hearing after he did not object when the evidence phase was closed.
Extrahierter Entscheid
No arbitrariness was shown; good faith required the defendant to object immediately and seek a formal incident decision.
Extrahierte Begründung
A party must promptly raise a procedural defect when it can still be corrected. Since the defendant neither objected to the closure of evidence nor requested a formal ruling, the cantonal court could treat the silence as acquiescence.