The Australian citizenship of convicted terrorist Abdul Nacer Benbrika has been restored by the nation's highest court.
The High Court ruled on Wednesday that former home affairs minister Peter Dutton's move to strip Algerian-born Benbrika of his citizenship was invalid.
Benbrika was arrested and convicted over plots to attack Melbourne landmarks in 2005, including the AFL grand final at the MCG.
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The self-proclaimed Islamic cleric has also called on his followers to kill at least 1000 non-believers to force the Australian government to withdraw troops from Iraq and Afghanistan.
His 15-year sentence was due to end in 2020 but the government was successful in keeping him detained under a continuing detention order, with a court ruling he posed an unacceptable risk to the community.
The order extended his detention until this month.