This book is the first major study of the global phenomenon of faith-based prison units. Exploring the roots of faith-based units in South America, it explains why the Prison Service of England and Wales set up the first Christian-based unit in the western world in 1997 - and why there was subsequently a rapid expansion of faith units across the Western world. The book presents a vision of justice that is not just concerned with building more prisons but with rebuilding more prisoners.