UNAT held that the Appellant had failed to show that UNDT exceeded its discretion in matters of case management. UNAT noted that it was indisputable that the Appellant had made a request to UNDT for his witness to be called. UNAT found that there was no mention of any witness in the UNDT judgment and that it was not clear that UNDT had considered that evidence. UNAT held that the Appellant should have been given the opportunity to call his witness or given an explanation by UNDT for not calling the witness. UNAT held that UNDT had committed an error of procedure, such as to affect the decision...