UNAT held that, when responding to requests for the waiver of an official’s immunity, the Organisation must comply with its legal obligations to the requesting Member State under the relevant international instruments, which limit immunity to official acts and oblige the Secretary-General to cooperate at all times with the appropriate authorities to facilitate the proper administration of justice and to prevent the occurrence of any abuse in connection with the privileges and immunities. UNAT noted that the Secretary-General is best placed to appreciate the nature of the Organisation’s...