Despite ethnography's long and distinguished history in the social sciences, its use in criminology is still relatively rare. Over the years, however, ethnographers in the United States and abroad have amassed an impressive body of work on core criminological topics and groups, including gang members, sex workers, drug dealers, and drug users. Ethnographies on criminal justice institutions have also flourished, with studies on police, courts, and prisons providing deep insights into how these organizations operate and shape the lives of people who encounter them. The Oxford Handbook of Ethnographies of Crime and Criminal Justice provides critical and current reviews of key research topics, issues, and debates that crime ethnographers have been grappling with for over a century. This volume brings together an outstanding group of ethnographers to discuss various research traditions, the ethical and pragmatic challenges associated with conducting crime-related fieldwork, relevant policy recommendations for practitioners in the field, and areas of future research for crime ethnographers. In addition to exhaustive overview essays, the handbook also presents case studies that serve as exemplars for how ethnographic inquiry can contribute to our understanding of crime and criminal justice-related topics.