Addressing critical areas of drug control and system improvement, this book provides a comprehensive examination of policy relevant research. Leading experts explore major problems related to drug trafficking and use, focusing on important policy initiatives. Each chapter discusses a specific problem area, the policies designed to address it, research on the effectiveness of those policies, and the policy implications of the research.

Collective efficacy is a neighborhood-level concept in which community members create a sense of agency and assume ownership for the state of their local community. This concept is one of several forms of formal and informal social control that predict the overall functioning of a community. In this book, the authors examine collective efficacy and crime in eight Miami-Dade County, Florida neighborhoods, based on data they collected from across the country and in the Miami-Dade neighborhoods themselves. They discuss findings relevant to the theory of collective efficacy itself, ramifications...