(1) A Commonwealth officer may, with such assistance as is necessary, arrest without warrant, outside Australia, a person to whom this Act applies in relation to an act if the officer has reasonable grounds for suspecting that the person has committed, is committing, has attempted to commit or is attempting to commit an offence against the laws applied under subsection 4(1).
(2) The Commonwealth officer, or a person authorized by him or her , may hold the person so arrested in custody until he or she can be brought before a Justice of the Peace or other proper authority in Australia to be dealt with in accordance with law.
(3) This section does not authorize the holding of a person in custody for a longer time than is reasonably necessary in the circumstances to enable him or her to be taken to Australia and there brought before a Justice of the Peace or other proper authority.