Dispute over validity of employment contract or dismissal; decisive legal issue concerning revision of lower court's labor law assessment

The Federal Labour Court dismissed the plaintiff's revision, thereby upholding the Hessian Regional Labour Court's decision and leaving the lower court's judgment in force, with the plaintiff ordered to bear the costs of the revision. The dispute concerned a civil labour law matter, specifically challenging the validity or consequences of an employment-related action or claim. The decisive legal basis centered on the application of labour law doctrines and procedural norms governing the right to an effective legal remedy and the substantive assessment of the employment relationship, resulting in the rejection of the plaintiff's appeal and the finality of the earlier ruling against them.