Labor law appeal; scope of review and finality of lower instance judgment in revision proceedings

The Federal Labour Court (BAG) dismissed the plaintiff's revision, upholding the Lower Labour Court of Düsseldorf's judgment and ordering the plaintiff to bear the revision costs. The dispute concerned a labor law matter where the employer successfully defended against the employee's claims on appeal. The court's decision reaffirms the lower instance ruling as final, with the plaintiff prevailing on no points. The specific substantive legal norms or doctrines driving the outcome are not detailed in the provided operative text, but the decision constitutes a final rejection of the employee's legal challenge following the third instance review.