A First Information Report (FIR) is a written document prepared by the police when they receive information about a cognizable offense. It serves as the initial step in the criminal justice process, allowing law enforcement to begin an investigation. The FIR includes details such as the nature of the crime, the date and time it occurred, and the identities of the involved parties, including the victim and the accused. FIRs are crucial for maintaining law and order, as they formally record the complaint and trigger police action. Once filed, the FIR is registered in the police station's records, and a copy is provided to the complainant. This document is essential for legal proceedings and can be used in court as evidence.