In a landmark decision, a court in Buenos Aires sentenced a former military officer and the adoptive parents of one of the country’s many babies “stolen” during the dictatorship to prison for concealing the child’s identity and falsifying adoption documents.

Maria Eugenia Sampallo Barragán, 30, had brought charges against the three after discovering her true identity seven years ago. Ms Sampallo is one of hundreds of people who were snatched from their parents or born in captivity during the country’s dictatorship of 1976-83, but she was the first to face her adoptive parents in court.

Osvaldo Rivas, 65, and MarÍa Cristina Gómez Pinto, 60, her adoptive parents, were sentenced to eight and seven years in prison respectively. Enrique Berthier, a former army captain who handed Ms Sampallo over to the couple when she was a baby, received ten years.

“These are not my parents,” Ms Sampallo said at a press conference on Monday. “They are my kidnappers . . . there is no emotional bond that binds me to them. These are my parents,” she said, picking up photos of her biological parents.

Argentina’s military regime arrested Leonardo Sampallo and Mirta Barragán, suspected leftist dissidents, in December 1977. Soon after Ms Sampallo was born, her parents died in prison and the infant was given to Captain Berthier to pass on to another family, which hid her real identity.

Ms Sampallo learnt about her past from the human rights group Grandmothers of the Plaza de Mayo. They have found 88 people like Ms Sampallo, children of their own sons and daughters who “disappeared”.

The Argentine military imprisoned tens of thousands of people suspected of being subversives and killed as many as 30,000. The junta also decided to “rehabilitate” its enemies’ children by placing them with families that supported the dictatorship. Many of the children were given to the families of men who may have participated in the torture and deaths of their parents.

The Grandmothers say that up to 500 children were abducted by the military or were born in captivity. During the dictatorship the group kept note of women who suddenly appeared with babies without being pregnant, and began investigations that, with recent advances in DNA technology, have begun to get results. Cases involving abducted children have proved crucial to bringing the dictatorship’s architects and executioners to justice. An amnesty for military and police officers imposed by the first postdictatorship government did not include the theft of babies, jurists contended.

“My hope is that each conviction acts as a step toward building the truth,” said Victoria Donda, an MP and activist who was taken from her biological parents at birth and learnt of her real identity in 2003.

The Dirty War

— Approximately 30,000 Argentinians disappeared during the Dirty War, a campaign of violence and intimidation by a series of governments

— The collapse of the alliance between left and right factions in the Peronist movement is seen as the catalyst of the trouble. A paranoid conservative Argentinian group backed the army in taking extreme action to control the Left

— Most disappearances occurred under the military regimes that ruled the country from 1976 to 1983, after the overthrow of Isabel Perón by Jorge Rafael Videla, then head of Argentina's army

— Democracy was swept away and the military became increasingly violent. It regarded a “cleansing” of Argentine society as necessary to the country’s survival

— Liberals, trade unionists, and others suspected of less than wholehearted support for the regime were rounded up. After their interrogation and murder, their bodies were never returned

Sources: desaparecidos.org ; nuncamas.org; National Commission on the Disappearance of Persons

Times Recommends

• Violent video games won’t corrupt
• Pope Benedict XVI: Alma Mater
• Chávez should know what’s good for him