Dr Thomas G. Kirsch is Lecturer at the Department of Anthropology at Goldsmiths College, University of London. Between 1993 and 2001, he conducted ethnographic fieldwork in Zambia. He has published two books on African Christianity (one of them entitled Spirits and Letters: Reading, Writing and Charisma in African Christianity; Oxford/New York: Berghahn Books; 2008). Since 2003, he has also conducted ethnographic fieldwork on issues of human safety, security and crime prevention in South Africa. Dr Bertram Turner is senior researcher at the Max-Planck Institute for Social Anthropology in Halle. He was assistant professor at the Institute of Social Anthropology and African Studies in Munich between 1993 and 2001, where he taught anthropology with a special focus on religion and legal anthropology. He has held university teaching positions in Munich and Leipzig. He has been conducting fieldwork in Morocco since 1996 with a specific focus on the management of natural resources, Islamic activism and conflict settlement in a plural legal setting.