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CHK, R (On the Application Of) v Secretary of State for the Home Department

England and Wales Court of Appeal (Civil Division)
Mar 3, 2026
Smart Summary (Beta)

Factual and Procedural Background

The Appellant is a Brazilian national convicted in 2012 and classified as a "foreign criminal" under the UK Borders Act 2007. The Respondent refused the Appellant's asylum and related human rights claims on 12 May 2017 and certified those claims; a Deportation Order was made the same day under the Immigration Act 1971. Following the Supreme Court decision in 2017, the Respondent withdrew and re-made the decision on 17 July 2017 (the July 2017 Decision), this time without certification. The Appellant completed his custodial sentence, was initially held in immigration detention, and was released on immigration bail in about May 2018. Bail conditions have varied; as at 3 July 2023 they included permissive work, a required residence at a specified address, and monthly reporting; as at 26 January 2026 they prohibited work, required fortnightly police reporting and digital reporting.

The Appellant's appeals against the July 2017 Decision progressed through the First-tier Tribunal (FTT) and the Upper Tribunal (UT) with dismissals and remittals (FTT decision 2 March 2018; UT set aside 15 May 2019; FTT dismissed 10 May 2021; UT set aside 18 January 2023). The Appellant also applied under the EU Settlement Scheme; that application was refused and is pending appeal to the FTT. On 1 September 2025 the Appellant applied to the Administrative Court for a writ of habeas corpus; Judge Douglas-Jones, sitting as a deputy High Court judge, refused that application on the papers on 17 October 2025. The Appellant appealed; the Court of Appeal dismissed the appeal and gave reasons at a hearing where the appeal was announced dismissed.

Legal Issues Presented

  1. Whether an application for habeas corpus is available to a person who is not physically detained but is on immigration bail with conditions—i.e., whether "detention" for habeas corpus may include a sufficient degree of "de facto control" or "significant curtailment" of liberty.
  2. Whether the existence of a Deportation Order that has not been withdrawn, revoked or quashed provides a lawful basis for mandatory bail conditions and thus precludes habeas corpus relief.
  3. Procedural questions raised by the Appellant: adequacy of reasons, denial of effective hearing, alleged reliance on non-existent documents, and other interlocutory case-management decisions (including extension of time and certification as totally without merit).

Arguments of the Parties

Appellant's Arguments

  • The Appellant argued that the deputy judge applied the wrong test by requiring "physical detention" and should have applied a "de facto control" test: the Deportation Order and bail conditions (residence restriction, mandatory reporting for many years, prohibition on work, prohibition on international travel and threat of detention) together amounted to sufficient restraint to found habeas corpus.
  • The Appellant relied on the Habeas Corpus Act 1816 and authorities said to support a broader concept of "restrained liberty" and on historical lines of authority permitting habeas corpus applications by persons previously detained but then on bail.
  • Procedurally, the Appellant contended he was denied an effective right to be heard, that the deputy judge relied on non-existent documents, that reasons were inadequate (failure to address certain authorities), that there was inconsistency in the Respondent's position, and that the deputy judge was irrational in certification decisions and case management.

Respondent's Arguments

  • The Respondent accepted that, in an appropriate case, bail conditions might constitute a "significant curtailment" of liberty sufficient to justify habeas corpus, but contended that the bail conditions in this case fell far short of that threshold.
  • The Respondent relied on the existence of an active Deportation Order providing a lawful basis for mandatory bail conditions (Schedule 10 to the Immigration Act 2016) and submitted that habeas corpus was not appropriate to challenge the validity of that order where other remedies exist or are pending.
  • The Respondent defended the deputy judge's procedural decisions and the sufficiency of his reasons; there was no material denial of a hearing and the case-management decisions disclosed no error of law.

Table of Precedents Cited

Precedent Rule or Principle Cited For Application by the Court
Precedent 1 (R (Cheblak) v Secretary of State for the Home Department [1991] 1 WLR 890) Priority historically given to habeas corpus and its constitutional importance. Used to illustrate the high constitutional status of habeas corpus and the need to prevent abuse of the remedy.
Precedent 2 (R (Kiarie & Byndloss) v SSHD [2017] UKSC 42; [2017] 1 WLR 2380) Context for administrative decisions affecting deportation and appeals. Explains why the May 2017 decision was withdrawn and remade in July 2017; factual background reference.
Precedent 3 (R (Kaitey) v Secretary of State for the Home Department [2021] EWCA Civ 1875; [2022] QB 695) Recognition that habeas corpus may, in appropriate circumstances, be available to persons on bail. Deputy judge relied on Kaitey to acknowledge that restrictive bail conditions might justify habeas corpus; appellate court accepted that principle but held conditions here were insufficient.
Precedent 4 (R (O'Brien) v Secretary of State for Home Affairs [1923] 2 KB 361) Use of "de facto control" / custody or control concept where physical custody is exercised by a third party. Court held O'Brien does not support extending habeas corpus to cases without actual detention; it addresses who the writ may be directed to where detention by third party exists.
Precedent 5 (R (Rahmatullah) v Secretary of State for Defence [2012] UKSC 48) Whether a UK minister could be treated as exercising sufficient control to answer for detention when detainee is held by foreign forces. Court held Rahmatullah did not assist the Appellant because Rahmatullah involved clear detention and the issue of who exercised control, not the question whether bail-style restrictions amount to detention.
Precedent 6 (R v Spilsbury [1898] 2 QB 615) Historical authorities on habeas corpus and bail situations. Noted as part of older line of cases allowing habeas corpus challenges by persons who had been detained and later bailed; the court said those cases do not establish that absence of detention suffices for habeas corpus.
Precedent 7 (R v Secretary of State for India in Council, ex p Ezekiel [1941] 2 KB 169) Historical authority in the same line as Spilsbury and Re Amand. Referenced to explain historical practice; court concluded those authorities do not support the Appellant's position under modern procedure.
Precedent 8 (Re Amand [1941] 2 KB 239; appeal [1943] AC 147) Application for habeas corpus by a person on bail where court treated application as if still in custody to challenge the decision underlying detention. Court held such authorities concern applicants previously detained seeking to challenge the decision that grounded detention and are not authority for treating non-detained persons as entitled to habeas corpus; further, that line is not good law post-Worcestershire.
Precedent 9 (Re Caborn-Waterfield [1960] 2 All ER 178) Another historical authority in the same strand. Referenced as part of historical practice; no extension of principle to the present facts.
Precedent 10 (The Father v Worcestershire County Council [2025] 2 WLR 155) Held children placed in foster care were not "detained" for habeas corpus; modern procedural reform limits use of habeas corpus to challenge orders where other remedies exist. Applied to reject the Appellant's reliance on older authorities and to support the position that habeas corpus should not be used to challenge orders in the ordinary course where other remedies exist.
Precedent 11 (R (Muboyayi) v Secretary of State for the Home Department [1992] QB 244) Earlier Court of Appeal authority considered in Worcestershire regarding limits on habeas corpus. Approved in Worcestershire and relied on to show limits to habeas corpus as a route to challenge orders.
Precedent 12 (Re SA (Vulnerable Adult with Capacity: Marriage) [2005] EWHC 2942; [2006] 1 FLR 867) Broader concept of "detention" including "significant curtailment" of freedoms. Cited by the Appellant; court acknowledged such authorities but held the bail conditions here did not meet that threshold.
Precedent 13 (Re C (Mental Patient: Contact) [1993] 1 FLR 940) Authority cited for the proposition about significant curtailment of freedom. Used illustratively; court found those authorities distinguishable on the facts.
Precedent 14 (R (Jalloh) v Secretary of State for the Home Department [2020] UKSC 4; [2021] AC 262) Common-law false imprisonment can include cases such as overnight curfew; analogy for curfew-type restraints. Court accepted analogy but held reporting obligations here were materially different and far less restrictive than a curfew sufficient to amount to detention.

Court's Reasoning and Analysis

The court proceeded from the established premise that habeas corpus protects against detention without lawful authority and that historically the writ enjoyed priority. The deputy judge's central finding—that the Appellant was not "detained" but on immigration bail subject to limited conditions—was accepted. The court analysed the Appellant's submissions under three main strands:

  1. De facto control / breadth of "detention": The Appellant's contention that "physical detention" is outdated and should be replaced by a de facto control test was rejected. Authorities relied on by the Appellant (O'Brien and Rahmatullah) were held to concern persons in clear physical detention where the question was who exercised control; they do not support extending habeas corpus to persons who are not detained but subject to supervisory bail conditions.
  2. Historical cases permitting habeas corpus by persons previously detained and then bailed: The court treated that line as concerned with challenges to the decision underlying detention, not as establishing that absence of detention suffices for habeas corpus. The court held those authorities are no longer persuasive in light of the Supreme Court's decision in Worcestershire which emphasises modern judicial-review procedure and limits on using habeas corpus to challenge orders where alternative remedies exist.
  3. Analogies and broader conceptions of restraint: The court considered authorities (e.g., Re SA, Jalloh, Kaitey) acknowledging that sufficiently restrictive measures short of physical incarceration might, in an appropriate case, amount to detention. However, the court concluded that the Appellant's reporting obligations and other bail conditions (including ability to come and go from his residence and limited reporting) fell far short of the kind of "significant curtailment" or curfew-like restrictions that would found habeas corpus.

The court further accepted that the Deportation Order remained an active lawful instrument until set aside, providing a statutory basis for mandatory bail conditions (Schedule 10, Immigration Act 2016). Procedural and interlocutory complaints by the Appellant (adequacy of reasons, denial of hearing, alleged reliance on non-existent documents, extension of time decisions) were considered but found either without merit, immaterial to the central detention question, or not revealing an error of law.

Holding and Implications

HOLDING: The appeal is DISMISSED.

Implications:

  • The court affirmed that habeas corpus remains a high constitutional remedy but that it is not available where there is no detention or where bail conditions do not amount to a "significant curtailment" of liberty. On the facts, the Appellant's bail conditions did not justify issuance of a writ.
  • The Deportation Order, not having been revoked or quashed, provided a lawful basis for mandatory bail conditions; the court did not permit the Appellant to use habeas corpus as the route to challenge the Deportation Order where other remedies and appeals were pending.
  • No new general precedent was established beyond the application of existing authorities to these facts; the outcome is the dismissal of the Appellant's habeas corpus claim and the upholding of the deputy judge's decision.

Judge Lang had ordered anonymity for the Appellant; references to judges and parties in this summary use neutral placeholders consistent with that order.