Joshua Kern

Background and expertise

Joshua Kern is instructed in matters at the cutting edge of international criminal law and European extradition practice. His background is in landmark cases of historical importance, including: the trial of the Foreign Minister of the Khmer Rouge (Ieng Sary); the trial of the former Prime Minister of the Croat entity established in Bosnia-Herzegovina during the war in the former Yugoslavia (Jadranko Prlić); the first trial at the ICC of an incumbent Head of State (President Uhuru Kenyatta of Kenya); the extradition of the former Defence Minister of the Republic of Georgia (David Kezerashvili).

He is currently instructed by both individuals as well as government and civil society organisations to represent them upon international criminal law and transnational criminal law matters.

Joshua is a participant in a range of pro bono activities and sits on the International Practice Committee of the Inner Temple.

Joshua is an accredited advocacy trainer with the Inner Temple.

International Criminal Law

Legal Consequences arising from the Policies and Practices of Israel in the Occupied Palestinian Territory, including East Jerusalem, International Court of Justice, 2024

Joshua was instructed, with Dr Dov Jacobs, to draft a written statement on behalf of the International Association of Jewish Lawyers and Jurists for submission to the Court. The written statement is available here.

Report Armenia – Azerbaijan conflict, 2021

Read Armenia-Azerbaijan conflict Report here.

Situation in Palestine, ICC, 2021

Joshua was instructed as counsel by the International Association of Jewish Lawyers and Jurists in litigation before Pre-Trial Chamber I of the International Criminal Court (ICC) on the issue of the ICC’s territorial jurisdiction over the Situation in Palestine. The litigation arose from a request made by the Office of the Prosecutor in December 2019.

Mohamed Soltan v Hazem El Beblawi, 2021

Claim against former Prime Minister of Egypt Hazem El Beblawi alleging responsibility for torture arising from the arrest in Rabaa Square in 2013 of the Plaintiff. Mr El Beblawi was the IMF Ambassador for 11 Middle Eastern countries and had diplomatic immunity rights granted by the US. The claim was challenged by US lawyers Bartko, Zankel, Bunzel & Miller appointed by Steven Kay and with Josh Kern of 9BR, acted as international consultants. The DCC dismissed the claim, recognising the immunity from suit of Mr El Bablawi.

Situation in Afghanistan, 2019

Counsel to a coalition of human rights organisations granted leave to submit amicus curiae observations in the Appeals Chamber hearings on the interests of justice in December 2019.

UNAOIL, 2017

Led by Steven Kay KC. Allegations against UNAOIL related to claims of corruption and bid-rigging in the global oil and gas industry. The SFO made a mutual legal assistance request to the Monégasque authorities and carried out a raid of Unaoil’s premises. Extradition from Monaco of S. Ahsani was refused on dual criminality grounds.

Prosecutor v Uhuru Kenyatta (ICC)

Legal Assistant on Uhuru Kenyatta Defence team

Case 002 (Ieng Sary) – ECCC

Legal Consultant on Ieng Sary Defence team

Prosecutor v Jadranko Prlić (ICTY)

Legal Assistant on Prlić Defence team

Extradition and Mutual Legal Assistance

PI v Svishtov (C648-20 PPU), 2021

Led by Helen Malcom KC (Three Raymond Buildings) in a criminal / extradition preliminary reference heard by the Court of Justice of the European Union (CJEU) following a reference from Westminster Magistrates’ Court.

Georgia v Kezerashvili, 2016

Led by Hugo Keith KC (instructed by Michael Drury CMG of BCL Solicitors) in extradition proceedings at Westminster Magistrates’ Court, in a case involving the multiple extradition requests for David Kezerashvili, formerly the Defence Minister of Georgia.

Criminal Cases

R v Sothilingam [2023] EWCA Crim 479

Court of Appeal holds there is no duty on a defendant to bring issues relating to electronic tagging equipment to the attention of the court in order to maintain an entitlement to credit for time spent on a qualifying curfew.

R v JB, 2023

D acquitted of four counts of rape, witness intimidation, possession of a bladed article, strangulation and making a threat to kill at York Crown Court

R v JA, 2023

D acquitted of one count of attempted rape and assault by beating at Hull Crown Court.

"He is prodigious, academically rigorous and a great grafter, who has excellent analytical skills." (Chambers UK, 2023)
“...tenacious, diligent, and robust advocate with excellent forensic and drafting skills”
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PROFILE: Joshua Kern

Legal 500, 2024 Chambers UK, 2024

Year called

2013 (Admitted as a solicitor in 2008)



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Confiscation / POCA

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Financial Crime

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Fraud, Bribery & Corruption

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Sexual offences


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Crisis Management

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Financial Crime

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Fraud, Bribery & Corruption

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Financial and Corporate law

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Corporate Offences


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Direct access



020 7489 2727


Modern History, University of Oxford (academic scholar).


Law Society, Honourable Society of the Inner Temple

Defence Extradition Lawyers Forum

International Defence Associates


ICC List of Assistants to Counsel

American Bar Association’s International Criminal Justice Standards Advisory Group


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