This document provides an overview of criminology, including definitions, history, and theories. It discusses how criminology is the scientific study of crime, criminal behavior, and the criminal justice system. The history section outlines the evolution of criminology from classical to positivist to sociological approaches. Classical criminology focused on free will and choice, while positivist criminology examined biological and psychological factors. Sociological criminology analyzed the influence of social structure, processes, and conflicts on criminal behavior. The document also differentiates between crime and deviance, and examines different perspectives and types of crime.