9.5 The Committee observes that the author could, in principle, have applied to the court for review of the grounds of his detention before the enactment of the Migration Amendment Act of 5 May 1992; after that date, the domestic courts retained that power with a view to ordering the release of a person if they found the detention to be unlawful under Australian law. In effect, however, the courts’ control and power to order the release of an individual was limited to an assessment of whether this individual was a “designated person” within the meaning of the Migration Amendment Act. If the criteria for such determination were met, the courts had no power to review the continued detention of an individual and to order his/her release. In the Committee’s opinion, court review of the lawfulness of detention under article 9, paragraph 4, which must include the possibility of ordering release, is not limited to mere compliance of the detention with domestic law. While domestic legal systems may institute differing methods for ensuring court review of administrative detention, what is decisive for the purposes of article 9, paragraph 4, is that such review is, in its effects, real and not merely formal. By stipulating that the court must have the power to order release “if the detention is not lawful”, article 9, paragraph 4, requires that the court be empowered to order release, if the detention is incompatible with the requirements in article 9, paragraph 1, or in other provisions of the Covenant. This conclusion is supported by article 9, paragraph 5, which obviously governs the granting of compensation for detention that is “unlawful” either under the terms of domestic law or within the meaning of the Covenant. As the State party’s submissions in the instant case show that court review available to A. was, in fact, limited to a formal assessment of the self-evident fact that he was indeed a “designated person” within the meaning of the Migration Amendment Act, the Committee concludes that the author’s right, under article 9, paragraph 4, to have his detention reviewed by a court, was violated. (a) whether the prolonged detention of the author, pending determination of his entitlement to refugee status, was "arbitrary" within the meaning of article 9, paragraph 1; (b) whether the alleged impossibility to challenge the lawfulness of the author's detention and his alleged lack of access to legal advice was in violation of article 9, paragraph 4; and (c) whether the proceedings concerning his application for refugee status fall within the scope of application of article 14, paragraph 1 and whether, in the affirmative, there has been a violation of article 14, paragraph 1. 9.2 On the first question, the Committee recalls that the notion of "arbitrariness" must not be equated with "against the law" but be interpreted more broadly to include such elements as inappropriateness and injustice. Furthermore, remand in custody could be considered arbitrary if it is not necessary in all the circumstances of the case, for example to prevent flight or interference with evidence: the element of proportionality becomes relevant in this context. The State party however, seeks to justify the author's detention by the fact that he entered Australia unlawfully and by the perceived incentive for the applicant to abscond if left in liberty. The question for the Committee is whether these grounds are sufficient to justify indefinite and prolonged detention. 9.3 The Committee agrees that there is no basis for the author's claim that it is per se arbitrary to detain individuals requesting asylum. Nor can it find any support for the contention that there is a rule of customary international law which would render all such detention arbitrary. 9.4. The Committee observes, however, that every decision to keep a person in detention should be open to review periodically so that the grounds justifying the detention can be assessed. In any event, detention should not continue beyond the period for which the State can provide appropriate justification. For example, the fact of illegal entry may indicate a need for investigation and there may be other factors particular to the individual, such as the likelihood of absconding and lack of cooperation, which may justify detention for a period. Without such factors detention may be considered arbitrary, even if entry was illegal. In the instant case, the State party has not advanced any grounds particular to the author’s case, which would justify his continued detention for a period of four years, during which he was shifted around between different detention centres. The Committee therefore concludes that the author's detention for a period of over four years was arbitrary within the meaning of article 9, paragraph 1. 9.6 As regards the author's claim that article 9, paragraph 4, encompasses a right to legal assistance in order to have access to the courts, the Committee notes from the material before it that the author was entitled to legal assistance from the day he requested asylum and would have had access to it, had he requested it. Indeed, the author was informed on 9 December 1989, in the attachment to the form he signed on that day, of his right to legal assistance. This form was read in its entirety to him in Kampuchean, his own language, by a certified interpreter. That the author did not avail himself of this possibility at that point in time cannot be held against the State party. Subsequently (as of 13 September 1990), the author sought legal advice and received legal assistance whenever requesting it. 101