Labor law appeal: dismissal of revision challenging prior labor court judgment

The Federal Labour Court (BAG) dismissed the defendant’s appeal, thereby upholding the Berlin-Brandenburg Regional Labour Court’s judgment and leaving the lower court’s decision in force, with the defendant ordered to bear the costs of the revision. The dispute concerned a dispute in labor law, specifically involving a challenge to the legal outcome of the prior instance proceedings identified by case number 6 AZR 658/11. While the provided text contains only the operative part of the judgment, the decisive legal basis is derived from the appellate procedural framework governing the rejection of the defendant's legal arguments against the factual findings and legal assessment established by the lower court.