Justicia transicional, amnistía, indulto y cosa juzgada fraudulenta: A veinticinco años de un fallo emblemático de la Corte Interamericana de Derechos Humanos

The present study examines the judgment issued by the Inter-American Court of Human Rights on March 14,2001, resolving Barrios Altos v. Peru, which led to the creation of a new standard concerning transitional justice mechanisms, including the use of amnesty and pardon, through the development of the doctrine of fraudulent res judicata. The study examines this doctrine because it reshapes classical conceptions of criminal procedural law, specifically the doctrine of material res judicata and the non bis in idem principle, and its tension with fundamental human rights, namely the right to life, the right to physicalintegrity, the right to truth, and judicial guarantees.