Catharine has been working on cultural heritage topics, with a focus on the restitution of unlawfully or unethically removed antiquities and other cultural property.
She has been designated to the Panel of arbitrators of the Court of Arbitration for Art (CAfA).

Restitution or return to the countries of origin
Unlawful or unethical acquisitions that took place as a result of colonialism or foreign occupation.
Art recovery
Recovery of cultural heritage lost in more recent times as a result of theft or illicit import or export.
Art and law
Legal framework governing the circulation of art and the ethics of museum acquisitions.
Cultural heritage management and law
Legal matters of cultural heritage management.