UNAT considered the appeal of the Secretary-General and the cross-appeal of Mr Nartey. UNAT held that UNDT made an error of law when it found the decision to deny Mr Nartey’s request to grant him a lien on his post was an abuse of authority. UNAT held that Mr Nartey did not satisfy his burden to show the impugned decision was based on a retaliatory motive. UNAT held that UNDT made an error of law when it concluded that the impugned decision was retaliatory. UNAT held that UNDT also made factual errors regarding retaliation and these errors resulted in a manifestly unreasonable decision. UNAT...