Now more than ever, the criminal justice system, and the programs, policies, and practices within it, are subject to increased public scrutiny, due to well-founded concerns over effectiveness, fairness, and potential unintended consequences. One of the best means to address these concerns is to draw upon evidence-based approaches demonstrated to be effective through empirical research, rather than through anecdote, standard practice, or professional experience alone (National Institute of Justice, 2011). The goal of this book is to describe the most useful, actionable, and evidence-based solutions to many of the most pressing questions in the criminal justice system today. Specifically, this edited volume contains brief and accessible summaries of the best available research, alongside detailed descriptions of evidence-based practices, across different areas of the criminal justice system. It is written so that practitioners and researchers alike can use the text as reference tool in their work and in training the new generation of individuals working to improve the system. Researchers and practitioners in many areas of criminal justice – crime prevention, policing, courts (prosecution, defendants, judges), corrections, sanctions, and sentencing – can reference specific chapters in this book to guide their policy and practice decisions. Although theory is a guide for the practices described, the chapters will address practical issues in implementation and action. This book overcomes the limitations of previous criminal justice practice books in that it is written as a practice resource and reference guide and spans practices and policies across different sectors of the criminal justice system – from prevention to policing to sanctions and corrections. Each chapter contains a list of action items, based upon the best available scientific research, that can be implemented in practice to address key issues and long standing challenges in the criminal justice system.

Offender profiling is an investigative tool used to narrow down the range of potential suspects for a crime by predicting the personality, behavioral, and demographic characteristics that an offender is likely to possess, based upon information collected at the crime scene. While offender profiling has been popularized by TV shows and movies such as Criminal Minds, Silence of the Lambs, and Mindhunter, the real-world impact of offender profiling is largely unknown. This book discusses the history of offender profiling, summarizes research on offender profiling methods, and reviews offender profiling evaluations of accuracy and applied impact. This book also describes a promising new offender profiling methodology called evidence-based offender profiling. This new method relies upon empirical data and scientific methods to develop, evaluate, and replicate offender profiles, thereby increasing offender profiling's accuracy and utility for active police investigations. It uses prior information about statistical regularities between types of offenders and types of offenses to predict the characteristics of offenders in unsolved cases. A discussion of the future of offender profiling research and implications for law enforcement is also included. This book also explains how practitioners can benefit from the use of empirically tested and validated profiles in their unsolved investigations and how the use, continued research, and evaluation of evidence-based offender profiling can advance the quality, prestige, and utility of the field of offender profiling.

American law enforcement, and the public’s perception of police, is a topic of growing interest among academics, practitioners, and policymakers. From the 2014 events in Ferguson, MO, and the alleged "Ferguson Effect", to the debate over the impact of body-worn cameras (BWCs), police militarization, use of force, and other practices that may alter the public’s view of police legitimacy and procedural justice, there is an increasing need for research addressing these contemporary issues in American policing. This book presents the latest research on these topics, as well as related topics noted in the Presidential Task Force on 21st Century Policing, such as police use of technology, transparency, oversight, and building trust with the community. The studies contained in this book examine these issues by leveraging empirical data on policing, public perceptions, crime, and diverse research methods, to present high-quality analysis of these timely and relevant topics in today’s world. The chapters in this book were originally published as a special issue of the Journal of Crime and Justice.

American law enforcement, and the public's perception of police, is a topic of growing interest among academics, practitioners, and policymakers. From the 2014 events in Ferguson, MO, and the alleged "Ferguson Effect", to the debate over the impact of body-worn cameras (BWCs), police militarization, use of force, and other practices that may alter the public's view of police legitimacy and procedural justice, there is an increasing need for research addressing these contemporary issues in American policing. This book presents the latest research on these topics, as well as related topics noted in the Presidential Task Force on 21st Century Policing, such as police use of technology, transparency, oversight, and building trust with the community. The studies contained in this book examine these issues by leveraging empirical data on policing, public perceptions, crime, and diverse research methods, to present high-quality analysis of these timely and relevant topics in today's world. The chapters in this book were originally published as a special issue of the Journal of Crime and Justice.

Offender profiling is an investigative tool used to narrow down the range of potential suspects for a crime by predicting the personality, behavioral, and demographic characteristics that an offender is likely to possess, based upon information collected at the crime scene. While offender profiling has been popularized by TV shows and movies such as Criminal Minds, Silence of the Lambs, and Mindhunter, the real-world impact of offender profiling is largely unknown. This book discusses the history of offender profiling, summarizes research on offender profiling methods, and reviews offender profiling evaluations of accuracy and applied impact. This book also describes a promising new offender profiling methodology called evidence-based offender profiling. This new method relies upon empirical data and scientific methods to develop, evaluate, and replicate offender profiles, thereby increasing offender profiling's accuracy and utility for active police investigations. It uses prior information about statistical regularities between types of offenders and types of offenses to predict the characteristics of offenders in unsolved cases. A discussion of the future of offender profiling research and implications for law enforcement is also included. This book also explains how practitioners can benefit from the use of empirically tested and validated profiles in their unsolved investigations and how the use, continued research, and evaluation of evidence-based offender profiling can advance the quality, prestige, and utility of the field of offender profiling.

This Brief examines the "militarization" of law enforcement in the United States through the lens of the stakeholders primarily responsible for implementing, funding, and enacting the practice. Largely a result of policies such as the war on drugs, war on terror, and the 1033 program, there has been a gradual but dramatic rise in the use of military-grade weapons, equipment, and tactics used by police agencies across the United States. This Brief examines the level of support for various aspects of police militarization by lawmakers, police executives, and local police officers, and how their opinions may differ based upon their current position or demographic features using a series of analyses and propensity score matching techniques. This Brief also provides an overview of some of the key policy changes responsible for police militarization, and provides insights into the views held by policymakers and law enforcement on various aspects of the practice. The results indicate that while many responsible for this shift are in favor of paramilitary procurement programs, there are differing opinions on key issues such as oversight and use of military-grade weapons, equipment and paramilitary tactics. This work will be of interest to researchers in criminology and criminal justice, particularly those with an interest in policing studies, as well as related fields such as public policy, public administration, emergency management, and sociology.