Home Office may detain illegal entrant who appears to be over 18
15 July 2013
R (on the application of AA) (FC) (Appellant) v Secretary of State for the Home Department (Respondent)  UKSC 49 – read judgment
The Immigration Act 1971, Schedule 2, paragraph 16(2) (“paragraph 16”) empowers the Home Secretary, acting through immigration officers, to detain a person if there is reasonable ground to suspect that he is liable to be removed as an illegal entrant to the United Kingdom. Section 55 of the Borders, Citizenship and Immigration Act 2009 (“section 55”) imposes duties regarding the welfare of children on the Secretary of State and immigration officers in all immigration matters. The issue on this appeal was whether section 55 rendered the appellant’s detention for a period of 13 days unlawful, in circumstances in which the respondent acted in the mistaken but reasonable belief that the appellant was aged over 18.
The following summary is based on the Supreme Court’s press report.
The appellant, born in Afghanistan, arrived in the United Kingdom on 8 October 2008 whilst concealed in a lorry. When caught and arrested, he said that he was aged 14 and claimed asylum. However, the following day he was assessed as being over the age of 19 by social workers from Hampshire County Council. He was granted temporary admission and released from immigration detention, but on 6 November 2008 the respondent Home Secretary refused his asylum claim and issued a decision to remove him as an illegal entrant. His appeal against that decision was dismissed by the Immigration and Asylum Chamber of the First Tier Tribunal, which concurred with the view that the appellant was aged over 18. On 7 July 2010, the respondent detained the appellant under paragraph 16 and set directions for his removal to Afghanistan on 20 July 2010.
The appellant then sought judicial review in relation to several matters based on his assertion that his age had been wrongly assessed. On the same day, the implementation of his removal was stayed and he was released from detention into the care of Cardiff City Council (“Cardiff”). In August 2010, Cardiff carried out a fresh age assessment, as a result of which they accepted that the appellant was born on 1 February 1993. Assuming that to be correct, the appellant would have been aged 15 upon his arrival in the United Kingdom and aged 17 when detained on 7 July 2010. The respondent accepted Cardiff’s fresh age assessment. Cardiff duly provided him with accommodation and associated support in accordance with his status as a child. Had the respondent known of the appellant’s true age, she would not have detained him on 7 July 2010, as to do so would have been contrary to the Home Secretary’s policy in relation to minors. The appellant proceeded with his claim for judicial review against the Secretary of State.
His case had been, and remained, that the fact of his age at the time of his detention made that detention unlawful under section 55 as his welfare was not taken into account, and that the respondent’s reasonable belief that he was over the age of 18 is no defence to that claim. His claim was dismissed by the High Court and subsequently by the Court of Appeal. He appeals to the Supreme Court.
The Supreme Court unanimously dismissed AA’s appeal. Lord Toulson, with whom Lord Neuberger, Lord Clarke and Lord Wilson agreed, gave the lead judgment. Lord Carnwath gave a concurring judgment.
Reasoning behind the judgment
It is well established that the courts take a strict approach when construing statutory powers of executive detention. Against that background, as there was no dispute that the appellant fell within the ambit of paragraph 16, the question was whether there was a material breach of section 55. If there was, the appellant’s detention was unlawful.
Under section 55, the respondent has a direct and a vicarious responsibility. With regard to the former, she must make arrangements for a specified purpose, namely that immigration functions are discharged in a way which has regard to the need to safeguard and promote the welfare of children (“the welfare principle”). Though not an easy thing to achieve, this includes establishing proper systems for arriving at a reliable assessment of a person’s age.
The respondent Home Secretary is responsible for any failure by those exercising her functions on her behalf, such as immigration officers, to have regard to the guidance given by her or to the welfare principle. The relevant guidance in place for assessment of a person’s age in relation to the respondent’s immigration functions, which is careful and detailed, complies with her direct responsibility under section 55 to safeguard and promote the welfare of children in the context of her immigration functions. Further, the respondent’s vicarious responsibility had been discharged appropriately, as there was no basis in this case for finding that there was a failure by any official to follow the respondent’s guidance. It followed that there had been no breach of section 55 and that her exercise of the detention power under paragraph 16 was lawful.
The Court was not persuaded that section 55 requires to be interpreted in the way that the appellant contended for in order to provide adequately for the welfare principle. Further, its natural construction did not render it inconsistent with Article 5 of the European Convention on Human Rights or Article 3 of the United Nations Convention on the Rights of the Child. Though the risk of an erroneous age assessment can never be eliminated, it can be minimised by a careful process. In that regard, the respondent’s guidance requires that the benefit of the doubt be given to the claimant at the stage of the initial assessment and that the respondent consider any fresh evidence arising thereafter. Further, a particular age assessment can be challenged by way of judicial review. Detention of a child under paragraph 16 in the mistaken but reasonable belief that he was over 18 is therefore not in itself a breach of section 55.
An ancillary question was whether, in the event that a claimant seeks judicial review of his detention solely in respect of the respondent’s actions in detaining him and not in respect of those of the local authority whose social services team carried out the age assessment, the court may freshly determine the age of the claimant rather than simply determining whether the respondent had acted lawfully. Though that question did not arise directly for decision in this case, the Court was sympathetic to the view that the habeas corpus jurisdiction of the court, which has provided a remedy against unlawful detention since ancient times, would indeed allow it to make a fresh determination of claimant’s age. Such a determination would necessarily impact on the lawfulness of the claimant’s detention. Lord Carnwath agreed with Lord Toulson’s judgment on the issues arising for decision in this appeal. However, on the ancillary question, he expressed reservations as to whether the Court should propose the use of habeas corpus in that context, particularly without hearing argument on the matter:
Given the constitutional importance of the “Great Writ” of habeas corpus, I would hesitate before accepting it as a suitable procedure for the narrow, factual inquiries likely to be required in cases such as this. I would in any event be particularly anxious that there should first be full exploration of all the legal and practical implications.
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