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Contact with chambers should be made through the Practice Management Team. They are happy to discuss client requirements and provide further information on such matters as the expertise and experience of individual members, fees, working practices and languages spoken. We have members able to work in French, German, Italian, Spanish, Dutch, Swedish, Greek and Chinese (Mandarin).

Outside working hours, a member of our team is always available to be contacted on matters of an urgent nature. Contact should be made using the Chambers main number or email.

To contact our Singapore office, please contact our BD Director, Asia, Rachel Foxton. Out of office hours calls will automatically be diverted to our clerking team in London.

London

20 Essex Street
London
WC2R 3AL

enquiries@twentyessex.com
t: +44 20 7842 1200
DX 0009 Lond/Chan Lane

Singapore

28 Maxwell Road
#02-03
Maxwell Chambers Suites
Singapore 069120

singapore@twentyessex.com
t: +65 62257230

Contact

Contact with chambers should be made through the Practice Management Team. They are happy to discuss client requirements and provide further information on such matters as the expertise and experience of individual members, fees, working practices and languages spoken. We have members able to work in French, German, Italian, Spanish, Dutch, Swedish, Greek and Chinese (Mandarin).

Outside working hours, a member of our team is always available to be contacted on matters of an urgent nature. Contact should be made using the Chambers main number or email.

To contact our Singapore office, please contact our BD Director, Asia, Rachel Foxton. Out of office hours calls will automatically be diverted to our clerking team in London.

London

20 Essex Street
London
WC2R 3AL

enquiries@twentyessex.com
t: +44 20 7842 1200
DX 0009 Lond/Chan Lane

Singapore

28 Maxwell Road
#02-03
Maxwell Chambers Suites
Singapore 069120

singapore@twentyessex.com
t: +65 62257230

Monica Feria-Tinta

Monica Feria-Tinta

Call: 2014

Languages: Spanish (fluent); French (fluent); German (intermediate)

Monica is a specialist in public international law. She is featured in The Lawyer Hot 100 2020 as amongst “the most daring, innovative and creative lawyers” in the United Kingdom. Described as a ‘powerhouse of international law’, she was ‘Barrister of the Year’ Finalist in The Lawyer’s Awards 2020.

Monica’s practice covers the full spectrum of public international law including statehood, treaty interpretation, state responsibility, immunities, law of the sea, boundary delimitation, transboundary environmental damage, environmental law, investment law, UN law, the law of international organisations, diplomatic protection, self-determination, human rights, use of force, humanitarian law, international criminal law and international dispute settlement.

Her practice also covers private international law, international arbitration and public law, with an emphasis on human rights. In addition to counsel work, she also accepts appointments as arbitrator. She is currently sitting as Arbitrator (Chair) in an investment arbitration with a seat in The Hague and is a guest lecturer at the LCIL Executive Course on Investment Law and Arbitration, University of Cambridge.

Monica is regularly instructed in complex and high-profile cases. She acts as counsel for Sovereign states and private parties in cases before English courts, international courts and arbitral tribunals under a variety of rules and applicable laws. She has acted in cases before the Court of Appeal, the High Court, the International Court of Justice (ICJ), Permanent Court of Arbitration (PCA), International Tribunal for the Law of the Sea (ITLOS), OECD procedures, UN Human Rights Committee, CEDAW Committee, Committee on the Rights of the Child, Inter-American Commission on Human Rights, Inter-American Court of Human Rights, ICSID, SCC and SIAC tribunals, International Criminal Tribunal for ex-Yugoslavia (ICTY), UN Special Procedures and diplomatic fora. She is admitted before the International Criminal Court (ICC). Increasingly, she is instructed to appear also in foreign courts.

Monica is an expert in the substance and procedure (including service of process) of diplomatic immunity, state immunity, and the immunity of State officials and special missions. She is also an expert in consular law, in all aspects of the Vienna Convention on Consular Relations. From 2018 to 2019 she served as Assistant Legal Adviser to the Foreign and Commonwealth Office where she routinely advised in those areas, including in the implementation of the Supreme Court judgment in Benkharbouche (in which the UKSC held the incompatibility of sections of the State Immunity Act with Article 6 of the European Convention on Human Rights). Recent notable work includes acting in the judicial review of Harry Dunn’s parents against the Secretary of State for Foreign and Commonwealth Affairs (raising nuanced aspects of diplomatic immunity), advising a UN Specialised Agency on the immunity of international organisations and arbitration in complex contracts, advising in the high-profile US$1bn Gold dispute relating to the Central Bank of Venezuela, on recognition of governments and executive certification before commercial courts, and advising a state sitting on the board of the World Bank on immunity matters. Her expertise in the area of immunities is reflected in her forthcoming book Foreign State Immunity and Enforcement of Arbitral Awards in English Courts to be published by Oxford University Press.

Monica’s career at the Bar is built on substantial experience working for international courts and tribunals which include the International Court of Justice where she advised in the seminal case on Genocide (Bosnia v Ex-Yugoslavia), and the ICTY (Chamber Trial I) where she advised on international humanitarian law and the law of command responsibility. Her experience working with international law institutions includes assisting members of the International Law Commission (ILC) drafting comments to the ILC Draft Articles on State Responsibility, acting as Amicus (with the ILC Special Rapporteur on Diplomatic Protection); drafting responses relating to UN Special Procedures; acting as expert to the Final Report of the Independent Expert on the right to reparation for victims of gross violations of human rights and humanitarian law; assisting in the drafting of UN General Assembly Resolutions (in an advisory capacity); and serving as legal adviser to a State Delegation to the Diplomatic Conference that negotiated the Rome Statute and established the ICC.

Monica’s recent international practice in international law beyond the United Kingdom includes advising on cases arising from Kosovo (peace-building operation), Syria, Iraq, Iran, Libya, Afghanistan, UAE, Turkey, Indonesia, Tunisia, Mali, Hong Kong, Singapore, India, Democratic Republic of Congo, Kenya, and Somalia. In arbitration, she has recently advised on state attribution in the context of construction contracts in an ICSID claim and on the meaning of the word “territory” in a BIT relating to jurisdictional issues. In addition, she is acting in inter-state litigation raising novel aspects of international law in the area of the law of the sea. Monica’s expertise in this area of law is acknowledged in her recent appointment to the IUCN World Commission on Environmental Law (Oceans, Coasts, and Coral Reefs Specialist Group).

Monica has also been active in cases raising sea-level rise issues, sinking islands, environmental degradation, oil spills, transboundary harm, climate change as a human right issue, environmental harm of waterways, protection of rivers, biodiversity, phasing-out coal mining cases and the enforcement of the Paris Agreement before a variety of international organs, including acting in the first climate change contentious case before the Human Rights Committee. She has also advised a State Party representative of a Least Developed Country in the drafting of the Rules of Procedure of Compliance with the Paris Agreement.

Monica has published extensively in the area of public international law and her work has been cited in ICJ proceedings and by Lord Carnwath of the UK Supreme Court. She has lectured worldwide on public international law including as guest lecturer at Oxford University; Kurt Bosch-University of Fribourg, Switzerland; Guangxi Normal University, Faculty of Law, China; Georgetown University Law Centre; and Universidad Autónoma de Mexico and previously held academic positions at the Lauterpacht Centre for International Law (University of Cambridge) where she is currently Partner Fellow, and at the London School of Economics (as Teaching Assistant to H.E. Christopher Greenwood, former ICJ Judge).

Monica has taken part in expert missions to Kenya (2020), Myanmar (2016), Guatemala (2015), and has trained advocates in South Africa on international law (2017), Colombian lawyers on judicial processes in the context of transitional justice (2017), and members of the Bar in Honduras on international arbitration (2016).

She has been appointed to the Equality and Human Rights Commission’s Panel of Preferred Counsel (B Panel) who are generally instructed where “substantial knowledge and experience is required” in cases of great public importance concerning the Equality Act 2010 and human rights breaches in litigation before domestic and European Courts.

 

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Example cases

Public international law - international courts/international claims

Public international law - English courts - Constitutional and Public Law

Public international law - Amicus Curiae

Public international law - non-contentious matters

Private international law

Banking and financial services

Energy and natural resources

Environment

International arbitration

Human rights

International criminal law, mutual legal assistance, Interpol law

Aviation

Sectors and services

Awards

Publications

Professional appointments / memberships

Lectures / talks

Education

Sharp intellect, dedication, excellent knowledge of the law, and experience - willing and able to think outside the box.

The Legal 500 UK Bar 2021

Hardworking, very committed... She has made disputes under international environmental treaties her own

The Legal 500 UK Bar 2021

A junior who is very competent and dedicated to her work

The Legal 500 UK Bar 2021

An expert in public international law, particularly in relation to international organisations and privileges and immunities.

The Legal 500 UK Bar 2020

Her work is a stroke of genius.

A powerhouse of international law.

Chambers & Partners blog, 2015

Very experienced in international criminal law matters.

The Legal 500 UK Bar 2020

She is outstanding.

She astutely combines vast knowledge of human rights and international environmental law with great advocacy skills.

The Legal 500 UK Bar 2020

Her practice is centred around international crime matters.

The Legal 500 UK Bar 2019

A delight to work with.

She has superb attention to detail.

Monica Feria- Tinta’s Hot 100 ranking is only the latest of many garlands awarded to her in a sparkling career spanning many countries.

The Lawyer Hot 100

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