Kernrechtsfrage
Whether the appellate court assessed witness A.'s credibility arbitrarily by relying in part on his self-incrimination.
Extrahierter Entscheid
The credibility assessment was not arbitrary; self-incrimination could be considered together with the overall evidentiary context.
Extrahierte Begründung
The court held that the witness had exposed himself to prosecution by admitting drug purchases, and the appellate court also relied on corroboration from another witness, a handwriting expert report, the consistency of core statements, and the implausibility of the defendant's loan explanation.