The High Court will hear a landmark legal challenge today to the Australian government's power to detain people indefinitely in immigration detention.
The plaintiff will argue the country's highest court should not have decided, almost 20 years ago, that detention could be indefinite. Currently, the average period of time in which people are held in immigration detention is 708 days. But Josephine Langbien from the Human Rights Law Centre says that in practice it's often much longer than that.
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