Question: What judicial trial of the members of the "de factor" military government that ruled Argentina during the dictatorship of the Proceso de Reorganización Nacional ("el proceso") was served by Chief Justice Leon Arslanian?
Sentence (from "Alfredo Astiz"): Alfredo Ignacio Astiz (born 8 November 1951) is a former commander, intelligence officer, marine and naval commando who served in the Argentine Navy during the military dictatorship of Jorge Rafael Videla during the Proceso de Reorganización Nacional (1976–1983).
Relevant evidence: No