Key legal question
Whether pre-trial detention already credited under Art. 51 StGB could still found compensation under Art. 431 StPO
Extracted holding
No. If detention can be fully credited against a sentence under Art. 51 StGB, compensation is subsidiary and falls away.
Extracted reasoning
Art. 51 StGB requires crediting detention even without identity of offence or proceedings. The decisive point is that one of several proceedings led to a conviction; the nature of the convicted offence need not itself have justified detention.