Overview
Mark is a barrister specialising in extradition, family and immigration matters. He has particular expertise in cases involving cross-border issues and parallel proceedings across multiple jurisdictions.
He is recognised within the Legal 500 for his work in international crime & extradition, immigration and family: Children. Mark is recognised in Chambers & Partners for extradition and immigration.
Mark has appeared in the Supreme Court and the Court of Appeal, as well as the High Court Family Division in relation to international family matters and the Administrative Court in extradition proceedings.
He is an experienced extradition practitioner and regularly appears in the High Court (Admin) in relation to extradition appeals. He is instructed in relation to both import and export extradition, concerning request from both EU states and Part 2 countries.
Mark is an international family specialist and appears in child abduction, forced marriage, and permanent relocation proceedings before the High Court Family Division. He is also regularly instructed in private children and care proceedings, especially those involving an international element. Mark advises on connected family and immigration issues involved in intercountry adoption and appears in applications for recognition of foreign adoption orders.
He is a key member of the 5SAH immigration team with experience encompassing Tier 1 and business visa applications, family and spousal visa applications under Appendix FM, the EU Settlement Scheme, and asylum proceedings. He is instructed in asylum claims following extradition requests.
Mark is currently instructed in asylum proceedings following an extradition request, and in an extradition matter following child abduction proceedings. Mark regularly advises on disclosure of documents between family and immigration or extradition proceedings.
Direct Access
Mark is Direct Access qualified and can be directly instructed by members of the public through Direct Public Access. Please contact the clerks at 5SAH if you would like to instruct him directly.
Professional Panel Appointments
- Attorney General's Panel of Counsel: B Panel.
- CPS Specialist Extradition Panel, Level 3.
Extradition & International
Mark is an experienced barrister in relation to extradition and international law proceedings. He regularly appears in extradition proceedings at first instance and on appeal in the High Court (Admin). Mark is currently resisting requests from Ireland, France, Bulgaria, and Hungary on the basis of their prison conditions. Mark is currently instructed for the Secretary of State in a US extradition request involving a specialty issue under Part 2 of the Extradition Act 2003. He recently dealt with extradition to Germany where there were parallel child abduction proceedings and is instructed to resist extradition to France for a child abduction offence.
Interpol
Family & Children & International Family
Private children
Mark specialises in international family law. Mark frequently advises on the interplay with parallel asylum applications, and applications to recognise foreign adoption orders. Mark is currently instructed in child abduction proceedings involving the Netherlands, Poland and the USA, and an application to recognise an adoption order from Sierra Leone. He is advising on connected family and immigration issues involved in intercountry adoption from the USA
Public children
Mark appears for local authorities, parents, relatives, and guardians in care proceedings and specialises in public children proceedings with an international element. Mark is currently instructed as junior counsel in High Court care proceedings that began as an art.21 application from New Zealand under the 1980 Hague Convention, and an application for Forced Marriage Protection Orders where the child has been removed to Somalia
Immigration
Mark appears in immigration and associated judicial review proceedings, including those with overlapping extradition or family law issues. Mark is currently instructed as junior counsel in a very high profile protection claim and recently advised on revocation of a sponsor’s licence.
Judicial Review & Public Law
Mark has experience of judicial review proceedings and advises on a wide range of public law issues. Mark has recently advised on judicial reviews involving applications for ILR, visit visa applications, asylum support, and Turkish business visa applications under the Ankara Agreement.
Additional Information
Education
- BPP Law School, BPTC.
- Oxford Brookes University, GDL.
- University of Oxford, MPhysPhil (Physics and Philosophy).
Awards
- Walter Wigglesworth Pupillage Scholarship.
- Kennedy Scholarship.
- Hardwicke Entrance Award.
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Professional Memberships
- Defence Extradition Lawyers’ Forum (DELF).
- Child Abduction Lawyers Association (CALA).
- Immigration Legal Practitioners’ Association (ILPA).
Cases of Note
T v H [2025] EWHC 1875 (Fam)
First case considering the interpretation of a "pending" request for return in art.7(1)(b), 1996 Hague Convention, where mother had repeatedly frustrated the enforcement of a Polish Hague return order.
L v Canada v SSHD [2025] EWHC (Admin)
Junior counsel for the SSHD addressing whether the Home Secretary has the power to correct errors in an extradition order once issued.
H v O [2024] EWHC 114 (Fam)
Appeared for the SSHD in child abduction proceedings involving a parallel asylum claim, where the court refused return to the Netherlands under Hague Convention 1980 art.13b.
Re G (Recognition of a Nigerian Adoption) [2024] EWHC 2769 (Fam)
Represented the SSHD in foreign adoption proceedings where Knowles J was invited to recognise a Nigerian adoption order under the common law.
K v Germany [2024] EWHC
Represented the respondent judicial authority before Johnson J in a substantive appeal against extradition on section 25 (mental condition) and Article 8 grounds.
Re A & Ors (Care Proceedings: Inherent Jurisdiction: Order for Return to Austria) [2024] EWFC 178
Acting for the SSHD in High Court care proceedings before Knowles J considering whether to order return to Austria in the context of a parallel asylum claim from Syria.
R (RMO) v SSHD [2024] EWHC 1826 (Admin)
Appeared for the SSHD in judicial review before the Administrative Court relating to the adequacy of asylum accommodation where dispersal to a different area would interrupt the Claimant’s adult education.
R (E) v SSHD [2024] EWHC 1097 (Admin)
Instructed by SSHD in judicial review before Sheldon J relating to effectiveness of service by email where the Claimant had been denied re-entry to the UK due to cancellation of his spousal visa.
M v Norway [2024] EWHC 300 (Admin)
Challenge to extradition to Norway on dual criminality grounds involving detailed consideration of the appropriate test as set out in Cleveland.
L v Republic of South Africa [2024] EWHC 731 (Admin)
Challenge to extradition to South Africa before Fordham J on Article 3 and section 91 grounds regarding fitness to fly. Successfully argued in relation to the Secretary of State’s role in the appeal process regarding human rights arguments and fitness to fly assessments.
B v Hungary [2023] EWHC 2235 (Admin)
Successful appeal before Williams J challenging a Hungarian extradition request. The judge agreed that the dual criminality test was not satisfied for forgery offences and for using copyrighted material without permission that was said to amount to an offence under the Computer Misuse Act 1990.
AA v SSHD [2023]
Instructed by SSHD as junior to KC in high-profile political asylum claim following Part 2 extradition proceedings. Complex and paper-heavy case against two KCs who called 7 expert witnesses over 13-day hearing.
M v Poland [2022] EWHC 1351 (Admin)
Mark appeared in an extradition appeal in the Administrative Court considering overlapping immigration and extradition issues including the effect of extradition on a pending application for settled status under the EU Settlement Scheme.
R (AK) v Secretary of State for the Home Department [2022]
Mark appeared in a judicial review on procedural grounds arising from the decision in Balajigari where the applicant had been refused due to false representations. The decision is currently on appeal to the Court of Appeal.
W v Poland [2022] EWHC 1317 (Admin)
Mark represented the Requested Person in a High Court extradition appeal where the Appellant had a young child diagnosed with Autistic Spectrum Disorder who would struggle to comprehend his father’s absence and may reject him upon his return.
J v H [2022] EWHC 862 (Fam)
Mark represented the SSHD in the High Court Family Division interpreting G v G where the abducted children were placed into foster care and the court exceptionally gave permission for the local authority to withdraw the children as dependants on their father’s asylum application in order to allow their return to Germany.
Hungary v C [2022]
Mark secured an extradition discharge where there were parallel private family proceedings involving child protection and child abduction issues. The Requested Person was wanted in Hungary for fraud offences. The case was unusual as it involved cross-examination of the social worker who had provided a welfare report, as well as expert evidence from a psychiatrist and psychologist about the effect of extradition on the Requested Person’s 5-year-old son.
Re D (Abduction Article 13(b) Child in Care) [2022] EWHC 317 (Fam)
Mark represented the SSHD in one of the first cases interpreting G v G where there are parallel child abduction and asylum proceedings. The case turned on whether the child could properly be considered a dependant on the asylum application, which the court agreed was a decision for the SSHD but subject to judicial review.
G v G [2021] UKSC 9
Mark was junior counsel representing child abduction charity, reunite ICAC, intervening in the Court and Appeal and then the Supreme Court. The decisions examine the interplay between asylum under the Refugee Convention 1951 and child abduction under the Hague Convention 1980 where the abducting parent and/or child makes a claim for asylum
H (Children) (Wardship: Lebanon) [2021]
Mark was instructed as junior counsel representing the father in the High Court Family Division in a complex case involving connected care and wardship proceedings where one child was living in the UK and the siblings were resident in Lebanon but the High Court had retained jurisdiction.
S v Romania [2021] EWHC 506 (Admin), DC
Mark appeared as junior counsel before the Divisional Court in extradition proceedings making an innovative argument for a modified Article 8 balancing exercise where the Requested Person has a right to retrial in the requesting state.
S (A Child) (Wrongful Retention: Portugal) [2020]
Mark represented the mother before the High Court Family Division in child abduction proceedings under the Hague Convention 1980, resisting a return order on the basis of a grave risk under Article 13(b) and the child’s objections under Article 13(2).
Belgium v E [2019] EWHC 2413 (Admin)
Mark secured the discharge of a mother of two in extradition proceedings that considered a flawed interpretation of provisions of the Children Act 1989 on appeal to the High Court. One of very few cases to be remitted to the magistrates’ court but allow for consideration of fresh evidence.
Re (A Child: International Relocation) [2018]
Mark appeared in the High Court Family Division resisting a child’s permanent relocation to Spain on behalf of the mother after the father had previously abducted the child without written consent or the permission of the court.
K v Germany [2018] EWHC 3479 (Admin)
Mark appeared in a multi-handed appeal in the High Court against extradition for a £64 million international VAT carousel fraud. One of the first High Court cases to consider impact of the Supreme Court’s decision in Goluchowski.
D v Poland [2017] EWHC 2171 (Admin)
Mark successfully appealed to the High Court against extradition for offences for possession of ammunition on the basis of Article 8 due to the short period of time remaining to be served following Chmura and Jesionowski.
N v Poland [2017] EWHC 833 (Admin)
Mark appealed to the High Court against extradition for offences of fraud, challenging the decision in Zengota that multiple EAWs can be considered as a whole when considering the passage of time bar to extradition.
K v Poland [2017] EWHC 577 (Admin)
Mark appeared in the High Court, arguing on appeal that of extradition to stand trial for fraudulently obtaining credit for a computer purchase in 2007 would be disproportionate under section 21A of the Extradition Act.
O v SSHD [2017]
Mark successfully resisted a Home Office appeal in the Upper Tribunal, having previously overturned a deportation order in the First-Tier Tribunal, arguing that there were no serious grounds to deport despite his conviction for theft and money laundering in 2013.
B v Poland [2016] EWHC 1639 (Admin)
Mark appeared in High Court extradition appeal and secured a rare discharge based on the private life of single male without relatives in the UK, as opposed to family life considerations.
G v Lithuania [2015] EWHC 707 (Admin)
Mark appeared in the High Court, which considered whether evidence in the European Arrest Warrant that the requested person’s sentence would be unenforceable amounted to a bar to extradition.
