BAG reversal affirming employer's defense against employee's labor claim after appellate court rejected employer's appeal

The Federal Labor Court (BAG) dismissed the claim and reversed the lower court's decision in favor of the defendant employer, ordering the plaintiff-employee to bear the costs. The dispute concerned a labor law matter where the first-instance court had initially granted the plaintiff's claim, but the appellate court had rejected the defendant's appeal; the BAG subsequently overturned this, ruling in favor of the defendant. While the specific underlying legal norms are not detailed in the provided excerpt, the decisive outcome rests on the BAG's assessment that the plaintiff's claims failed to meet the legal requirements, resulting in a complete rejection of the lawsuit at the final stage of litigation.