Shortly after entering the Pink House presidential palace, he stunned many by ordering the trial of nine members of the former ruling military junta, on charges ranging from kidnap to torture and disappearance of thousands of people.
The trials, unprecedented in Latin America, were conducted by a civilian court and ended in December 1985 with the conviction and imprisonment of five former military rulers, including two ex-presidents. Four others were acquitted.
Imagine a newly elected leader holding the old regime to account for its crimes. As Otto notes–
It said that the ultimate ambition for any Argentine President is to be able to walk down the street safely once their term is over. Alfonsín was the only one who could do that.
Obit @ The Mex Files