This book began in presentations and discussions at the Locating Forensic Cultures Symposium, held in July 2015 at the University of Notre Dame London Gateway. Thanks are due to its sponsors: the Wellcome Trust and the Centre for the History of Science, Technology and Medicine at Manchester University as well as the Department of History, Center for Scholarship in the Liberal Arts, and the Reilly Center for Science, Technology, and Values at the University of Notre Dame. We thank Elizabeth Kuhn for coordinating the symposium, and Kat Hamlin for editing and indexing. At Johns Hopkins University Press, we thank Matt McAdam, commissioning editor, and Ashleigh McKown, freelance copyeditor, for their excellent work, as well as other members of the staff for their encouragement, professionalism, and hard work.