Key legal question
Whether police memory notes ('Gedächtnisprotokolle') were unlawfully used as evidence
Extracted holding
The notes could be treated as written police reports under cantonal procedure; because the accused refused formal questioning, he could not later invoke violations of rules governing such questioning.
Extracted reasoning
The refusal to undergo formal interviews prevented regular questioning. As reports under § 96 StPO, the notes were admissible as records of police observations; the appellant also failed to show arbitrary evaluation.