F.I.R– The case is to be assessed on merit on the basis of the evidence adduced before it–
Where there is no F.I.R. or where the F.I.R. cannot be proved in accordance with law in that case also the court will not detract the testimony of the witnesses which will have to be assessed on its own merits and the case is to be assessed on merit on the basis of the evidence adduced before it.... (Nazmun Ara Sultana, J). .....State =VS= Dafader Marfoth Ali Shah & ors, (Criminal), 2018 (1) [4 LM (AD) 430] ....View Full Judgment

A written document prepared by the police hen they receive information about the commission of a cognizable offence. It is a report of information that reaches the police first in point of time and that is why it is called the First Information Report. It is generally a complaint lodged with the police by the victim of a cognizable offence or by someone on his/her behalf. Anyone can report the commission of a cognizable offence either orally or in writing to the police.
FIR does not contain detailed facts of the prosecution case. Its main purpose is to give information of a cognizable offence to the police and set the law in action. ….. [Ataur Rahman vs. State 43 DLR 87]
FIR is not a substantive piece of evidence. It is used as a means for corroborating or contradicting the statement of the informant. ….. [Dipok Kumar Sarkar vs. The State 8 BCR 141 AD]
See, Section 154 of the Code of Criminal Procedure, 1898 (v of 1898).