The 1948 Human Rights Declarations, both the American and the Universal, recognized the rights to life, freedom and security, prohibited torture and other cruel, inhuman or degrading treatments or punishment, and required an effective remedy against acts violating fundamental rights. Seventy years later, Uruguay still discusses over impunity of crimes committed within State terrorism. Progress made by judges and Courts towards the identification and prosecution of those responsible has been blocked by subsequent hindrances. The most recent Supreme Court of Justice case law rejects by majority vote the imprescriptibility of such crimes. The purpose of this paper is to analyze the arguments underpinning such decision.