Education
Williams was educated at Macquarie University where he graduated with a Bachelor of Economics and a Bachelor of Laws with Honours. He also holds a Master of Laws from the University of New South Wales and a Doctor of Philosophy from the Australian National University.
Career
He appeared in the High Court of Australia as counsel in Lange v Australian Broadcasting Corporation (on freedom of speech), the Hindmarsh Island Bridge Case (on freedom from racial discrimination) and Plaintiff S157/2002 v Cth (on review of government action and the rule of law) and in the Supreme Court and Court of Appeal of Fiji, including in Republic of Fiji v Prasad (on the legality of the 2000 coup). In 2008, Williams was a delegate in the governance stream at the Australia 2020 Summit. In 2005, he chaired the Victorian Human Rights Consultation Committee that led to the enactment of the Victorian Charter of Human Rights and Responsibilities.
He also writes for The National Times.