( CNN ) -- Prosecutors asked Wednesday for a 25-year sentence for Argentina 's last dictator , who is on trial on charges that he violated human rights during his 17-month rule in the early 1980s . Former Gen. Reynaldo Benito Bignone is accused of torturing 56 people and depriving them of their liberty , as well as committing illegal searches . He ruled Argentina from June 1982 until the nation 's return to democracy in December 1983 . More than 100 people have testified at his trial since it started in November , the government 's Judicial Information Center said . The trial is expected to last until March . Also facing the same charges are former intelligence chief Fernando Ezequiel Verplaetsen and ex-military officials Santiago Omar Riveros , Eugenio Guanabens Perello , Carlos Alberto Tepedino and German A. Montenegro . Prosecutors also asked for 25-year sentences for Verplaetsen and Riveros and a 20-year incarceration for Tepedino , the Judicial Information Center said . They want sentences of 12 years for Perello and two years for Montenegro . The alleged crimes occurred at the secret Campo de Mayo torture center in Buenos Aires , court papers say . Campo de Mayo was the main torture center during the 1976-83 right-wing dictatorship . Few who were taken there walked out alive . Up to 30,000 students , labor leaders , intellectuals and leftists who ran afoul of the dictatorship because of their political views disappeared or were held in secret jails and torture centers during the eight-year `` Dirty War . '' Bignone , 82 , has been under house arrest . He faces two other trials : in the abduction and disappearance of doctors and nurses at the Hospital Posada and of two soldiers when he was head of the Military College . The three-judge panel in the current trial was scheduled to hear testimony Wednesday from two groups representing Argentineans who were victims of the Dirty War . Trial will resume February 25 with the first defense testimony , the Center for Judicial Information said .
Former Gen. Reynaldo Benito Bignone is accused of torturing 56 people . More than 100 people have testified at his trial . Trial is expected to last until March .