This book examines treasure law and practice from the rise of the new science of archaeology in the early Victorian period to the present day. Drawing on largely-unexamined state records and other archives, the book covers several legal jurisdictions: England and Wales, Scotland, Ireland pre- and post-independence, and post-partition Northern Ireland. From the Mold gold cape (1833) to the Broighter hoard (1896), from Sutton Hoo (1939) to the Galloway hoard (2014), the law of treasure trove, and the Treasure Act 1996, are considered through the prism of notable archaeological discoveries, and from the perspectives of finders, landowners, archaeologists, museum professionals, collectors, the state, and the public. Literally and metaphorically, treasure law is revealed as a ground-breaking chapter in the history of the legal protection of cultural property and cultural heritage in Britain and Ireland.