The course delves into the fundamental concepts and principles of Criminal Investigation, encompassing contemporary techniques in Crime Detection and Investigation. This involves exploring modern methodologies in processing crime scenes related to offenses like murder, homicide, rape, and robbery. Additionally, it aims to examine the foundational concepts and overarching principles governing arrest procedures, searches, seizure, and the rights afforded to the accused during custodial interrogation. Furthermore, the course emphasizes a comparative analysis between military and police intelligence functions and operations. It encompasses the various types of police intelligence, the phases comprising the police intelligence cycle, and the intricacies of modus operandi (MO) and order of battle intelligence. Moreover, it scrutinizes the regulatory systems aimed at identifying criminals and addressing other threats to national security.