“In December, the NSW Court of Appeal ruled that provisions of the Parliamentary Evidence Act allowing arrest warrants were invalid because they impaired the court's institutional integrity.”

• The NSW Court of Appeal struck down sections of the Parliamentary Evidence Act 1901, holding that they compromised judicial independence and thus impaired the court's institutional integrity.

The NSW Court of Appeal struck down sections of the Parliamentary Evidence Act 1901, holding that they compromised judicial independence and thus impaired the court's institutional integrity.