Labor dispute over the validity of a contractual agreement and the allocation of revision costs

The Federal Labour Court dismissed the plaintiff's revision, thereby upholding the judgment of the Hessian Regional Labour Court and leaving the lower court's decision in force. The dispute concerned a labour law claim where the plaintiff sought to establish rights against the employer, but failed to overturn the appellate court's assessment in the final instance. The court’s decision relied on the application of standard procedural and substantive labour law principles, resulting in the plaintiff being ordered to bear the costs of the revision proceedings.