Explore the core theories of criminology, from classical and biological explanations to modern psychological and sociological perspectives. Learn how criminal law is created and applied across different legal traditions, including common law, civil law, and religious law. Examine violent crime, property crime, white-collar offenses, cybercrime, organized crime, and terrorism, gaining insight into how each impacts society. Discover the investigative techniques used in law enforcement, from Forensic science and criminal profiling to interrogation methods and modern surveillance technology. Follow the criminal justice process, from arrest and trial to sentencing, appeals, and wrongful convictions. Understand how punishment and rehabilitation shape the future of offenders through incarceration, probation, parole, and reintegration programs. Study juvenile delinquency, its causes, and how the legal system approaches youth crime differently than adult offenses. Explore emerging trends in criminology, including artificial intelligence, predictive policing, globalization, and ethical challenges in modern law enforcement. Whether you're a student, law enforcement professional, or true crime enthusiast, this book offers a comprehensive step-by-step guide to criminology with real-world applications. With a glossary of key terms, a historical timeline of crime and justice, and a clear learning structure, this book is an essential resource for anyone interested in the study of crime.