The Turnbull government is facing mounting pressure to grant a Chilean extradition request for a Sydney woman accused of involvement in kidnapping, torture and murder as an agent of former military dictator Augusto Pinochet's feared secret police.

Adriana Rivas, a long-time Australian resident recently working as a nanny, has been charged with seven counts of "aggravated kidnapping" from her time with Dirección de Inteligenca Nacional (DINA) and is the subject of a campaign by members of the Chilean community in Australia.

Adriana Rivas pictured in an interview with SBS in 2014. Credit:SBS

Rivas was previously apprehended on a visit to Chile but escaped while on bail. She is now considered a fugitive by Chilean authorities and the country's Supreme Court publicly sought her extradition in January 2014 so she could stand trial, most notably for a charge concerning her alleged involvement in the disappearance and murder of a Communist Party leader in 1976.

Upon receiving the request, the Australian government asked for further information. Fairfax Media understands that detail, painstakingly translated and evaluated against Australia's extradition standards, was provided in January this year. Since then, a community campaign backed by various federal MPs has ramped up, calling for the government to grant the request urgently.