The issue focused on the government's tax policy, with public services and civil rights groups coming out in support of it.

"It is an important political issue that has been front and centre for a long time," said Law Committee chair Justice Mark Dreyfus. "I am very concerned about the court system and there are significant legal issues at stake."

Hudak was also asked to consider whether some federal laws would be constitutional if they were used by law enforcement officers.

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