2025 British Red Cross-ICRC customary IHL research team
Andrea Farrés Jiménez
Andrea Farrés Jiménez is a British Red Cross Research Fellow on the joint British Red Cross/International Committee of the Red Cross (ICRC) project on customary international humanitarian law. Prior to joining the project, Andrea worked as a research assistant at Erasmus University Rotterdam, the Organisation for Security and Cooperation in Europe, the Norwegian Refugee Council and as an independent consultant.
Andrea holds a master’s in international law from the Graduate Institute of International and Development Studies, and an LL.M. from ESADE Law School. Andrea speaks Spanish, English, French and Russian.
Harriet Macey
Harriet Macey is a British Red Cross Research Fellow on the joint British Red Cross/International Committee of the Red Cross (ICRC) project on customary international humanitarian law. Prior to joining the project, Harriet worked in both Legal and Protection roles at the ICRC’s Regional Delegation to the UK and Ireland. She also previously worked at peacebuilding organisation Saferworld, and at charities providing support to asylum seekers and refugees.
Harriet has also published in the International Review of the Red Cross on so-called ‘safe zones’ in armed conflict under international law – with a focus on the obligations on refugee-receiving states. She holds an LLB from the University of Edinburgh and an LLM in International Humanitarian Law and Human Rights from the Geneva Academy.
Antoana Nedyalkova
Antoana Nedyalkova holds the role of Team Leader of the joint British Red Cross/International Committee of the Red Cross (ICRC) Project on customary international humanitarian law (CIHL). She is also a Senior Research Fellow on the joint Project on CIHL. Prior to joining the project in 2020, Antoana worked as an Associate at the Legal Division of the ICRC in Geneva.
She was also an intern in the Legal Support Unit of the Kosovo Specialist Chambers in The Hague, at TRIAL International in Geneva, and in Trial Chamber I of the International Criminal Tribunal for the former Yugoslavia (ICTY) in The Hague.
Antoana holds an LL.M. in International Humanitarian Law and Human Rights from the Geneva Academy (Switzerlands) and an LL.B. in International and European Law from The Hague University of Applied Sciences (Netherlands). She is fluent in Bulgarian and English, has a working level of French, and a beginner level of Dutch and Russian.
Carlos Juliano Simões-Ferreira
Carlos Juliano Simões-Ferreira is a British Red Cross Research Fellow on the joint British Red Cross/International Committee of the Red Cross (ICRC) project on customary international humanitarian law. Prior to joining the project, Carlos Juliano was a Graduate Teaching Assistant at the School of Law, the School of Philosophy and Arts History, as well as the Department of Sociology at the University of Essex. He also worked as a criminal lawyer in Brazil, as well as in different organisations in the United Kingdom, Brazil and Colombia.
Carlos Juliano holds an LL.M. in International Human Rights and Humanitarian Law at the University of Essex and completed his PhD in Human Rights at the same institution. His thesis examined the legality and procedural requirements for detentions and prosecutions carried out by non-state armed groups under international humanitarian, international human rights, and international criminal law.
Carlos Juliano speaks Portuguese, Spanish, German, English and French.

Posts by the contributor
Twenty years on: the enduring impact of the ICRC customary IHL study and database
10 mins read Analysis / Conduct of Hostilities / Generating Respect for IHL / IHL / Law and Conflict / Related bodies of law Claudia Maritano & 2025 British Red Cross-ICRC customary IHL research team