Following a long civil-military dictatorship and a controlled political transition, the Brazilian process of reckoning with its authoritarian past has been turbulent and disputed. This is the theme this thesis focuses on. Based on interviews produced by the Oral History methodology with policymakers, as well as with the people who were affected by the authoritarian regime, we identified three different perspectives on the treatment of this past: that of the conservatives, that of the groups affected, and that of the negotiators. Each one of them represents how political actors organized and articulated themselves during the redemocratization process in order to shape the political debate. Considering this, the central hypothesis of this research is that, under the justification of avoiding a new institutional rupture and turning the page on history, the conservative perspective predominated in a deliberate process of silencing the memory of the affected people. This is, therefore, what we define as a public policy of silencing. Although we recognize that there was a movement of the State in favor of memory policies and measures between 2007 and 2014, these remained circumscribed to directly affected groups, such as family members of the dead and disappeared, former political prisoners, and movements for the defense of human rights, so that society does not perceive itself as having been harmed by the arbitrariness of authoritarianism, nor its effects. To support our analysis, we reflect on the political use of the 1979 Amnesty Law as an instrument to guarantee silencing until today. Furthermore, we point to the priority given to reparations as a strategy that produced an individualizing effect, keeping society at a distance from the agenda. Finally, we analyze the narrative disputes around the National Truth Commission and its disruptive impact on the public policy of silencing, which generated an intense reaction from conservative groups in different political spheres.