Ministerial Code of Conduct.

Full document

The Prime Minister John Howard in 1996 issued Ministerial Code of Conduct including:

"It is vital that ministers and parliamentary secretaries do not by their conduct undermine public confidence in them or the government. Ministers must be honest in their public dealings and should not intentionally mislead the Parliament or the public. Any misconception caused inadvertently should be corrected at the earliest opportunity. Ministers should ensure that their conduct is defensible, and should consult the Prime Minister when in doubt about the propriety of any course of action."