Many are also Sri Lankan Tamils who have been found to be refugees but have also had adverse security assessments.Manne says central to her case is the denial of natural justice.“She’s never broken any law and she’s never had the chance to defend herself in court against this security assessment,” he said. But a subsequent adverse security assessment saw her flown to Sydney with her nine and seven-year-old sons and new born baby and detained at Villawood Detention Centre, where she has now been for 14 months. Ranjini is the widow of a former senior LTTE member. She admits to membership of the group in her youth but she has not been able to find out the reasons for ASIO’s decision.The woman’s lawyer David Manne, from the Refugee and Immigration Legal Centre, says her challenge will be used as a test case for more than 50 other people in indefinite detention. “Ranjini is a refugee and mother of two young boys and a five-month-old baby and she’s asking court to decide whether its lawful for the Government to detain her indefinitely on and possibly forever the basis of a secret security assessment,” he said.“There are more than 50 people in a similar situation that is refugees with adverse security assessments and this case will have significant implications for their liberty too.” A High Court challenge has been launched in Australia against the indefinite detention of a Sri Lankan woman who received an adverse security assessment from the Australian Security Intelligence Organisation (ASIO), ABC news in Australia reported.The woman, Ranjini, was pregnant and living in Melbourne when she was originally granted refugee status. Manne says the court will be asked to rule whether her continued detention is lawful. Ranjini’s children are also living in detention with their mother and remain indefinitely detained in Australia unless a third country will take them.