Kernrechtsfrage
Whether the defendant's appearance through Z. constituted a serious procedural defect.
Extrahierter Entscheid
No. A legal entity may appear through such a person; there was no obvious procedural defect.
Extrahierte Begründung
The fact that Z. was a labor court lay judge responsible for payroll at the defendant does not prevent him from appearing as the defendant's representative before the labor court.