Starting mainly from several restitution claims concerning human remains, which have been addressed to Quai Branly Museum in Paris, to the Muséum National d’Histoire Naturelle (the Muséum) in Paris, and to the Royal Museum for Central Africa, in Tervuren (Belgium), this paper will look into the actors of the process of (re)construction of museums’ norms and policies. Moreover, the project will analyse the process of norms’ “framing” (Rodger Payne, 2001) : how these actors engage with the “great meta-narratives” of the past? And what are the main themes employed in justifying the “necessity of restitution”, particularly the political-historical arguments? (restitution as synonymous with the recognition of former colonies’ sovereignty, or with a reparation for colonial past’s torts).