Claire’s research lies in the field of human rights and the protection of children. She has published on a wide range of issues including intercountry adoption, international surrogacy, and cross-border child protection, as well as children's rights under the European Court of Human Rights. At the core of this research is the interaction between international and regional human rights instruments and domestic law, and the way in which these frameworks can be used to implement children’s rights.

Her first book, "Children's Rights in Intercountry Adoption" was awarded the Inner Temple Book Prize for New Authors, as well as the Faculty of Law's Yorke Prize, and has been cited by the Court of Appeal.

Claire is an Associate Member of Harcourt Chambers, and a fellow of the Lauterpacht Centre for International Law. She has also worked with organisations such as United Nations Office of the High Commissioner for Human Rights, the European Union, Save the Children, and Avocats Sans Frontieres on issues concerning child protection, human rights, and rule of law.