Providing a complete view of US legal principles, this book addresses distinct issues as well as the overlays and connections between them. It presents as a cohesive whole the interrelationships between constitutional principles, statutory criminal laws, procedural law, and common law evidentiary doctrines. This fully revised and updated new edition also includes discussion questions and hypothetical scenarios to check learning.

Constitutional principles are the foundation upon which substantive criminal law, criminal procedure law, and evidence laws rely. The concepts of due process, legality, specificity, notice, equality, and fairness are intrinsic to these three disciplines, and a firm understanding of their implications is necessary for a thorough comprehension of the topic. This book examines the tensions produced by balancing the ideals of individual liberty embodied in the Constitution against society's need to enforce criminal laws as a means of achieving social control, order, and safety. Relying on his first-hand experience as a law enforcement official and criminal defense attorney, the author presents issues that highlight the difficulties in applying constitutional principles to specific criminal justice situations. Each chapter of the text contains a realistic problem in the form of a fact pattern that focuses on one or more of the classic criminal justice issues to which readers can relate. These problems are presented from both the point of view of citizens caught up in a police investigation and from the perspective of police officers attempting to enforce the law within the framework of constitutional protections.

This book is ideal for courses in criminal law and procedure that seek to focus on the philosophical underpinnings of the system.

Walter P. Signorelli is Lecturer and Adjunct Professor of Law and Police Science at John Jay College of Criminal Justice at the City University of New York (CUNY), USA, and a practicing criminal defense attorney. Signorelli was a member of the New York City Police Department for more than thirty years. He retired as an Inspector in the Detective Division and had been the commanding officer of precincts in Brooklyn and Manhattan, in the Organized Crime Control Bureau, and in the Narcotics Division. He is a graduate of St. John's University School of Law, cum laude, and the Columbia University Police Management Institute. He is the author of The Crisis of Police Liability Lawsuits: Prevention and Management (2006), The Constable Has Blundered: The Exclusionary Rule, Crime, and Corruption (2010), Rome and America: The Great Republics: What the Fall of the Roman Republic Portends for the United States (2018), and Tiberius B.