Jonathan is a specialist extradition barrister. He is ranked as a ‘leading junior’ in the Legal 500 for ‘International Crime and Extradition’ and has developed a busy practice in this specialist area. He regularly appears at Westminster Magistrates’ Court and on appeal at the High Court, and he represents both Requested Persons and Judicial Authorities.
Jonathan also has considerable experience in criminal law and is instructed in criminal matters on behalf of defendants and for the CPS as a Grade 2 panel advocate.
BACKGROUND AND EXPERTISE
Jonathan spent 18 months in the Extradition Unit at the CPS where he gained considerable expertise in extradition proceedings. Since then, he has quickly developed a busy practice, both prosecuting and defending extradition cases. He has been involved in a number of leading cases, including appearing in the Supreme Court. The Legal 500 recommends Jonathan, stating "Formerly of the CPS, he is creative and innovative with his defence briefs".
In addition, Jonathan has considerable experience of mutual legal assistance, including the European Investigation Order.
Before moving to chambers, Jonathan was a Senior Crown Prosecutor for the CPS where his diligent preparation and robust advocacy meant that he was instructed to act in difficult and serious cases. He gained extensive experience in all types of cases in the Magistrates’ and Youth courts, encompassing work from theft to sexual offences. Since moving to chambers, he has been instructed in a range of cases, both prosecuting and defending. He has also been instructed by various local authorities.
Jonathan is currently at Grade 3 on the CPS extradition panel, and Grade 2 on the CPS prosecution advocate panel for general criminal work.
Led by John Hardy QC for the Respondent. The Supreme Court considered whether an individual who has been convicted, but where the conviction is not final because he has an unequivocal right to a retrial after surrender, is "accused" pursuant to s.14(a) of the Extradition Act 2003 or "unlawfully at large" pursuant to s.14(b) for the purposes of considering the "passage of time" bar to surrender. Judgment is currently pending.
Led by Mark Summers QC for Mr Balasz. The Appellants argued that their extradition would amount to a real risk of a breach of their Article 3 Convention rights due to the prison conditions in Hungary.
Representing two requested persons facing extradition to Belgium in respect of high value theft offences. Both were discharged on the basis of section 12A. In addition, M was discharged on the basis of Article 8 ECHR on the basis of particular mental health vulnerabilities.
The requested person had previously been the subject of extradition proceedings from Greece for the same matters, and had her sentence transferred to Greece where it had been served in full. The warrant was discharged on grounds of Article 8, double jeopardy and abuse of process.
Representing the Appellant in a successful appeal against the order for extradition on the grounds of proportionality. The Court held that, for the purposes of the Extradition Act 2003 s.21A, the requesting judicial authority bore the burden of detailing the seriousness of the extradition offence and what the likely penalty would be. In this case, they had not done so and so the appellant should be discharged.
Led by Julian Knowles QC for the Respondent. The Divisional Court considered the powers of the court to admit fresh evidence of the respondent on appeal which was relied upon to uphold the decision of the district judge, and concluded that it could do so in the interests of justice. The Court also rejected the arguments of the appellant that the District Judge had erred in his conclusions in respect of sections 2, 10, 14 and 21 of the Act. The appeal was dismissed.
Acting for the Respondent judicial authority. The Court held that a distinction could be drawn between a requested person trying to undermine a warrant by adducing evidence, and the district judge taking into account his evidence for the purposes of establishing dual criminality. The decision of the District Judge was therefore a proper one, and the appeal was dismissed.
Appearing for the Respondent judicial authority as a lone junior before the Divisional Court. The Court upheld the decision of the district judge to order the extradition of the Requested Person.
Representing a requested person who was a youth when he allegedly committed a number of non-domestic burglaries, and left the jurisdiction as a fugitive. His extradition was resisted on the basis of Article 8 and proportionality, including expert evidence.
"He is good on the technical detail, he doesn't take bad points, and he always adopts a sensible view of cases." Chambers UK, 2020
"A staunch advocate who is very knowledgeable on extradition matters" Legal 500, 2020
PROFILE: Jonathan Swain
"A brilliant advocate and tactician. Jonathan is always a pleasure to work with and a rising star among the Extradition Bar." "He is an able, clever advocate with very good knowledge of the law, who is both fair in his handling of prosecution work and very passionate when defending."
Chambers UK, 2020
0207 489 2727
BVC, BPP Law School (2010)
MA in International Criminology, University of Sheffield (2009)
LLB in Law and Criminology, University of Sheffield (2008)
Criminal Bar Association
Defence Extradition Lawyers Forum
CPS Extradition Panel Grade 3
CPS general criminal panel Grade 2