Chile seeks extradition from Australia of murder suspect Adriana Rivas AUSTRALIA is being asked by Chile's Supreme Court to extradite a woman accused of involvement in torture and murder during Chile's 1973-1990 military dictatorship. The court requested the extradition of Adriana Rivas overnight. She is wanted for her role in the 1976 murder of a Communist Party leader who was held in a secret prison before he was suffocated and thrown into the ocean. Ms Rivas was assistant to Manuel Contreras, the head of the DINA secret police during General Augusto Pinochet's dictatorship. She moved to Australia in 1978 but was detained during a visit to Chile in 2006. Ms Rivas was released after some months on probation and escaped to Australia. In an interview last year with SBS, she insisted she was innocent of the charges.