Relevant legislation
16 Section 200 of the Act gives the Minister the power to order the deportation of certain non-citizens. Section 201 provides that one class of non-citizens that may be deported under s 200, is non-citizens that have been in Australia for less than 10 years and who are sentenced to a period of imprisonment of not less than one year. It is not in dispute that the applicant fell within these requirements and was liable to a deportation order.
17 The initial decision to detain the applicant was made pursuant to s 254 of the Act which, prior to its amendment, provided:
"(1) This section applies if a person is a removee or a deportee and is in the custody of an authority of the Commonwealth, a State or a Territory, otherwise than under this Act.
(2) The Secretary may give the person written notice:
(a) if the person is a deportee:
(i) stating that a deportation order has been made; and
(ii)setting out particulars of the deportation order; and
(b) if the person is a removee - stating that the person is to be removed; and
(c) in any case - stating that, from the time when the person would otherwise be entitled to be released from the custody referred to in subsection (1) (the custody transfer time), the person will be kept in immigration detention.
(3) Where a deportee is given notice under subsection (2), this Act (other than subsections 253(1) and (3)) applies in relation to the deportee as if he or she had been detained under subsection 253(1) at the custody transfer time."
18 The second and continued periods of immigration detention were ordered pursuant to s 253 of the Act, which provides:
"(1) Where an order for the deportation of a person is in force, an officer may, without warrant, detain a person whom the officer reasonably supposes to be that person.
(2) A person detained under subsection (1) or (10) may, subject to this section, be kept in immigration detention or in detention as a deportee in accordance with subsection (8).
(3) Where an officer detains a person under subsection (1) or (10), the officer shall forthwith inform the person of the reason for the detention and shall, if that person so requests, furnish to him or her, as soon as practicable, particulars of the deportation order.
…
(8) A deportee may be kept in immigration detention or such detention as the Minister or the Secretary directs:
(a) pending deportation, until he or she is placed on board a vessel for deportation;
(b) at any port or place in Australia at which the vessel calls after he or she has been placed on board; or
(c) on board the vessel until its departure from its last port or place of call in Australia.
(9) In spite of anything else in this section, the Minister or the Secretary may at any time order the release (either unconditionally or subject to specified conditions) of a person who is in detention under this section.
(10) An officer may, without warrant, detain a person who:
(a) has been released from detention under subsection (9) subject to conditions; and
(b) has breached any of those conditions.
(11) Nothing contained in, or done under, this section prevents the Supreme Court of a State or Territory or the High Court from ordering the release from detention of a person held in detention under this section where the Court finds that there is no valid deportation order in force in relation to that person."