I think it's of course incumbent on all member states that are contributing to a mission that they conduct themselves in accordance with international legal obligations, including human rights and humanitarian law. It's then necessary, since they always remain under national command, for those national commands to ensure discipline of their personnel, and if anyone is indeed guilty of violations of legal requirements, they are held to account and appropriately disciplined.
I think there have been various statements from the UN recognizing, in the past, that they have had members of UN-authorized missions and mandated missions who have committed criminal acts, therefore the importance of ensuring, for the reputation and future acceptability of UN missions, that the high standards are maintained.
I don't think it's a revelation by Brazil pointing out that there have been difficulties, but I think, at least in terms of its policies, the UN has largely responded to that.