Labor dispute; scope of review and substantive law application in revision proceedings against social insurance benefits

The Federal Labour Court (BAG) rejected the defendant's revision, leaving the Lower Labour Court's judgment in favor of the plaintiff in force and ordering the defendant to bear the costs of the revisionary proceedings. The dispute concerned a labor law matter where the plaintiff successfully challenged the defendant's actions or omissions at the lower instance. The court's decision upheld the lower court's assessment based on the applicable standards of German labor law, finding no legal error in the earlier ruling that benefited the plaintiff.