Kernrechtsfrage
Whether the complaint against the detention-extension decision was admissible
Extrahierter Entscheid
The complaint in criminal matters was admissible; the new confrontation protocol filed with the reply was excluded as an inadmissible new submission.
Extrahierte Begründung
The detention decision was a final cantonal decision and the complainant had standing. Under Art. 99 BGG, the confrontation protocol was a new fact/evidence not prompted by the lower-court decision.