An American woman serving a life sentence for treason in Peru will not receive a new trial unless she can show proof that her conviction was unfair, this according to the Peruvian prime minister. Lori Berenson, a New York native and former MIT student, was convicted by a secret military tribunal in 1996 for helping rebels with the Tupac Amaru Revolutionary Movement. She was not allowed to see the evidence against her, and she was sentenced to life in prison.

The Prime Minister, Alberto Bustamante, who is also Peru’s Justice Minister, said, “The possibility of a new trial for Berenson depends on whether new evidence is presented that shows that her initial trial was unjust, arbitrary or was not based on the facts of the case.” Bustamante also said a pardon for Berenson is out of the question.