My question is to the Prime Minister. An email from Gregory Burton, chair of the lawyers branch of the Liberal Party of New South Wales, of 10 April released by Mr Heydon today confirms that Mr Heydon was 'amenable to delivering the sixth annual Sir Garfield Barwick address in August 2015 if the commission has completed'. Prime Minister, does this not confirm that Mr Heydon was aware of the conflict well in advance?