This book reinvigorates the field of socio-legal inquiry examining the relationship between law and demography. Originally conceived as population law in the 1960s following a growth in population and a use of law to temper population growth, this book takes a new approach by examining how population change can affect the legal system, rather than the converse. It analyses the impact of demographic change on the judicial system, with a geographic focus on Australian courts but with global insights and it raises questions about institutional structures. Through four case studies, it examines how demographic change impacts on the judicial system and how should the judicial system adapt to embody a greater preparedness for the demographic changes that lie ahead? It makes recommendations for reform and speaks to applied demographers, socio-legal scholars, and those interested in judicial institutions.