Sacha Darke is a Senior Lecturer in Criminology and co-director of the Research Centre for Equality and Criminal Justice in the Department of Social and Historical Studies, University of Westminster. His doctoral research focused on the use of ASBOs and other civility orders in crime prevention. Professor Darke is currently involved in research projects on inmate collaboration and self-governance in Brazilian prisons, higher education in prisons, race relations in prison, and pre/post release prison mentoring. Since September 2008, he has made four research trips to Brazil, during which he has visited over twenty prison units. In September 2010 he completed a three-week ethnographic study of a police jail in Rio de Janeiro.