“Most illegal migrants observe most rules, but some ignore some rules. Leerkes tells us why. He also shows how laws and practices in international migration have brought the return of a poor relief long considered a relic of the past. A well-written, highly relevant study that draws and deserves wide attention.” Abram de Swaan, Emeritus University Professor of Social Science, University of Amsterdam “A comprehensive book on the relation between crime and illegal residence. Very useful for all scholars interested in irregular migration and public safety issues.” Dita Vogel, Senior Migration Researcher Hamburg Institute of International Economics