ANTHONY MUSSON is Head of Research at Historic Royal Palaces. ANTHONY MUSSON is Head of Research at Historic Royal Palaces. GWILYM DODD is Associate Professor of History at the University of Nottingham, UK. HENRY SUMMERSON was awarded his Ph.D. by Cambridge University for a thesis on crime and law enforcement in England, 1227-1263. He has continued to work in this field, publishing numerous articles on aspects of medieval criminality, and editions, alone or in collaboration, of three crown pleas rolls, for Devon in 1238, Wiltshire in 1268 and Lancashire in 1292.