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International law specialist in the field of war crimes, crimes  against humanity and genocide, international human rights law, terrorism, anti-corruption, business and human rights, arbitration, extradition and mutual legal assistance.


Co-founder of The Guernica Group and Joint Head of Chambers at Guernica 37 International Justice Chambers. Also serves as Associate Counsel to The Guernica for International Justice.



Public International Law


Increasing reliance on international law in the domestic courts Read more >

Development, Training & Institution Building

Professional development and training in the areas of rule of law, international criminal law, human rights and criminal procedure Read more >

Public Advocacy & Government Relations

Specialist political and public affairs consultancy services on how best to identify, approach and influence the key decision makers of Whitehall, Capitol Hill, Brussels and further afield Read more >

Business and Human Rights


Bespoke advice and assistance on compliance with human rights standards and due diligence policies, advancing the UN Guiding Principles Read more >

Arbitration & Mediation


Dispute resolution, mediation &  arbitration,  Read more >

Crisis Management


Advisory services on foreign policy, international relations issues and strategic advice on public relations campaigns Read more >


Toby Cadman is an international law specialist and Co-founder of the The Guernica Group and Joint Head of Chambers at Guernica 37 International Justice Chambers.  


He has extensive experience in the fields of public international law, war crimes, human rights, terrorism and extradition law. Toby’s particular area of expertise is international legal obligations and the UN system of protection.

Ranked in Chambers and Partner UK Guide “Spotlight Table” 2017 and 2018 for International Crime


“Absolutely brilliant” junior who is known for his complex advisory work. Specialising in international humanitarian law, he has represented numerous individuals charged with war crimes and is often entrusted to lead inquiries into mass genocide and acts of terrorism. A real mover and shaker in the field, and a suave advocate.” (2017)


"Experienced practitioner who is highly regarded for his experience advising on complex cases. Specialising in international humanitarian law, he has represented numerous individuals charged with war crimes and is often entrusted to lead inquiries into genocide and acts of terrorism. Particularly innovative in spotting new angles to a case. He's the epitome of the modern lawyer." (2018)



Advice and representation to individuals, governments and judicial authorities in extradition proceedings at all levels.

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International Crime


International Criminal and Humanitarian Law is at the forefront of Guernica 37’s practice.  

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Toby recognises the demand for lawyers to deliver a streamlined service at competitive rates. Guernica 37 International Justice Chambers is proud to be able to offer direct public access to their specialist team of experienced international counsel and Toby is licensed by the Bar Standards Board in litigation and direct public access.

Governments, Individuals and Organisations may engage members of Chambers directly and use their experience and skills to advise, prepare and conduct their international cases, thus by-passing the traditional requirement in the UK for the instruction of a solicitor in order to engage counsel.


Guernica 37 International Justice Chambers is able to put together complete legal teams of leaders, co-counsel, legal assistants, case managers, researchers and investigators. Their long experience in this field has enabled them to build relationships with leading academics as a further resource and also to secure the services of leading political, military and police experts.

Toby is based at Guernica 37 International Justice Chambers headquarters in London, but also works out of San Francisco with the Guernica's non-profit organisation, The Guernica Centre for International Justice and Madrid from our Spanish law office G37 Despacho Internacional.

For further information, please contact Chambers. Click here.

London Chambers:

Guernica 37 International Justice Chambers

The Bloomsbury Building, 10 Bloomsbury Way, London WC1A 2SL

Tel:  +44 20 3457 0169



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© 2019 Toby Cadman. All Rights Reserved