However, the solution of a unified treaty body, which had been proposed by the High Commissioner for Human Rights, presented several problems related to its working methods, use of qualified experts and costs. ###>Cela dit, la solution que représenterait l'organe conventionnel unifié proposée par la Haut-Commissaire aux droits de l'homme, soulève plusieurs questions difficiles quant aux méthodes de travail, au recours à des experts qualifiés et aux coûts.