Criminal Code Act 1995

The national security of Australia or a foreign country means any of the following:

the defence of the country;

the protection of the country or any part of it, or the people of the country or any part of it, from activities covered by subsection (2);

the protection of the integrity of the country’s territory and borders from serious threats;

the carrying out of the country’s responsibilities to any other country in relation to the matter mentioned in paragraph (c) or an activity covered by subsection (2);

the country’s political, military or economic relations with another country or other countries.

For the purposes of subsection (1), this subsection covers the following activities relating to a country, whether or not directed from, or committed within, the country:

espionage;

sabotage;

terrorism;

political violence;

activities intended and likely to obstruct, hinder or interfere with the performance by the country’s defence force of its functions or with the carrying out of other activities by or for the country for the purposes of its defence or safety;

foreign interference.