Hilali, Re

Factual and Procedural Background

The Appellant, a criminal court in Spain, issued a European Arrest Warrant on 29 April 2004 seeking the Respondent’s extradition for alleged participation in a terrorist organisation and conspiracy connected to the 11 September 2001 attacks in the United States. The Respondent was arrested in The City on 28 June 2004. On 1 June 2005 Judge Workman ordered extradition, reasoning that the conduct constituted conspiracies to murder and to endanger aircraft under United Kingdom law.

The Respondent appealed under the Extradition Act 2003 but the High Court dismissed the appeal on 26 May 2006, and leave to appeal further was refused on 16 November 2006, exhausting the statutory appeal process.

Following the Spanish Supreme Court’s later decision to quash related convictions against another accused (largely because certain telephone-intercept evidence was inadmissible), the Respondent sought a writ of habeas corpus in England. On 25 April 2007 the Divisional Court granted the writ, holding that the Respondent’s continued detention had become unlawful due to a “fundamental change in circumstances.” The Appellant appealed to the House of Lords, resulting in the present judgment.

Legal Issues Presented

1. Whether the common-law remedy of habeas corpus remains available, after the statutory appeal route in Part 1 of the Extradition Act 2003 has been exhausted, when subsequent events are said to undermine the legality of an extradition order.
2. Whether a United Kingdom court may review, on a case-to-answer basis, the sufficiency or admissibility of evidence described in a European Arrest Warrant in light of later developments in the requesting state.

Arguments of the Parties

Respondent's Arguments

• The quashing of related convictions in Spain, and the exclusion of telephone-intercept evidence, destroyed any justification for continued detention or extradition.
• Pursuing extradition after the Spanish prosecution abandoned intercepted calls in their own courts was inconsistent and abusive.
• Because circumstances had fundamentally changed, habeas corpus was the correct and available remedy notwithstanding section 34 of the 2003 Act.

Appellant's Arguments

• The Extradition Act provides an exclusive statutory code; habeas corpus is therefore excluded once statutory appeals are complete.
• The principle of mutual recognition bars English courts from examining the underlying evidence or deciding whether there is a case to answer in Spain.
• Even without the telephone-intercept material, other evidence exists and the Respondent remains accused of serious offences.

Government Agency's Arguments

• Allowing habeas corpus in these circumstances would undermine the legislative scheme and contradict the express words of the 2003 Act.

Table of Precedents Cited

Court's Reasoning and Analysis

1. Case-to-Answer Issue. The House held that assessing evidential sufficiency is impermissible for an executing state. Article 1(2) of the Framework Decision requires mutual recognition of judicial decisions among Member States. Therefore, the Divisional Court erred in examining whether the Spanish prosecutor could still prove the alleged conspiracy without the telephone-intercept evidence.

2. Habeas Corpus Issue. Section 34 of the Extradition Act 2003 states that decisions under Part 1 “may be questioned… only by means of an appeal under that Part.” Because the extradition order was appealable under section 26—and such appeal had been exhausted—habeas corpus was excluded. The earlier authority recognising habeas corpus (R (Nikonovs)) concerned a decision for which no statutory appeal existed and was therefore not analogous.

3. Abuse of Process Argument. The contention that continuing the extradition request was abusive failed; the Framework Decision contemplates suspension of surrender only in cases of serious and persistent breaches by a Member State of EU fundamental principles, a situation far removed from the present facts.

4. Postscript on Procedure. Lord Hope criticised both (a) the overly detailed narrative of evidence in the European Arrest Warrant, contrary to Article 8(1)(e), and (b) inaccuracies in the United Kingdom extradition order, which erroneously labelled “participation in a terrorist organisation” as the extradition offence even though that conduct was not extraditable.

Holding and Implications

APPEAL ALLOWED. The writ of habeas corpus issued by the Divisional Court is set aside. The extradition order made by Judge Workman is affirmed, but only in respect of the offences of conspiracy to murder and conspiracy to endanger the safety of aircraft.

Implications: The decision reinforces the exclusivity of the Extradition Act 2003 appeal regime and the principle of mutual recognition under the Framework Decision. English courts may not revisit evidential questions or entertain habeas corpus applications where statutory appeals have been exhausted. The judgment also underscores the need for precision in drafting European Arrest Warrants and related UK extradition orders.