Full form of FIR is First Information Report

A formal document prepared by the police when they receive information about the commission of a cognizable offense, it marks the starting point of a criminal investigation. It records essential details such as the nature of the offense, the time and place of occurrence, and the parties involved, based on the information provided by the complainant.

The concept plays a central role in criminal law systems, particularly in India, where registering it is a legal requirement for serious offenses. Once recorded, it authorizes the police to begin an investigation without prior court approval, collect evidence, and take necessary action. It also serves as an official record that can be referenced during legal proceedings.

Its importance lies in ensuring accountability and transparency in the early stages of law enforcement. For citizens, it provides a formal channel to report crimes and seek legal remedy, while for authorities, it establishes a documented basis for further action and judicial review.