Taxing Officers of the Supreme Court of New South Wales enjoy judicial immunity from costs orders when performing their taxation function, and conduct giving rise to a reasonable apprehension of bias does not constitute action in excess of jurisdiction sufficient to defeat that immunity. The scope of the court's supervisory jurisdiction to make costs orders against its own officers under Part 52A rule 4(5)(e) remains uncertain but would not in any event override judicial immunity. The NSWCA has signalled that the tests for judicial immunity derived from [name withheld] v [name withheld] may be reconsidered on a future occasion.
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