The APS link is worth a read.
Australian Public Service Commission - Code of Conduct
behave honestly and with integrity in the course of APS employment;
act with care and diligence in the course of APS employment;
when acting in the course of APS employment, treat everyone with respect and courtesy, and without harassment;
when acting in the course of APS employment, comply with all applicable Australian laws;
comply with any lawful and reasonable direction given by someone in the employee's Agency who has authority to give the direction;
maintain appropriate confidentiality about dealings that the employee has with any Minister or Minister's member of staff;
disclose, and take reasonable steps to avoid, any conflict of interest (real or apparent) in connection with APS employment;
use Commonwealth resources in a proper manner;
not provide false or misleading information in response to a request for information that is made for official purposes in connection with the employee's APS employment;
not make improper use of:
inside information, or
the employee's duties, status, power or authority,
in order to gain, or seek to gain, a benefit or advantage for the employee or for any other person;
at all times behave in a way that upholds the APS Values and the integrity and good reputation of the APS;
while on duty overseas, at all times behave in a way that upholds the good reputation of Australia; and
comply with any other conduct requirement that is prescribed by the regulations (regulations available on the ComLaw website)