Key legal question
Whether the cantonal court correctly applied Art. 68(2) StGB when fixing the supplementary sentence.
Extracted holding
No. The court had to determine a total sentence for all offences as if judged together, then deduct the earlier final sentences; its reasoning did not allow review of that calculation and wrongly assessed the new offences in isolation.
Extracted reasoning
Art. 68(2) StGB prevents worse punishment than if all offences had been judged together. The lower court failed to state a clear total sentence and improperly subtracted prior sentences before assessing culpability, which distorted the asperation method.