The Criminal Procedure Code lays (CrPC) the rules for conduct of proceedings against any person who has committed an offence under any Criminal law, whether it is I.P.C or other Criminal law.
Depending on the nature and gravity of an offence they can be classified under any of the following heads:
A cognizable offence is an offence in which the police officer as per the first schedule or under any other law for the time being in force, can arrest the convict without a warrant and can start an investigation without the permission of the court. Cognizable offences are generally heinous or serious in nature such as murder, rape, kidnapping, theft, dowry death etc. The first information report (FIR) is registered only in cognizable crimes.
Under section 154 Criminal Procedure Code (CrPC), a police officer is bound to register an FIR in case of a cognizable crime. He can also conduct some kind of preliminary inquiry before registering the FIR. In these offences, a convict is arrested and produced before the magistrate in the stipulated time.
A non-cognizable offence is the offence listed under the first schedule of the Indian Penal Code and is bailable in nature. In case of a non-cognizable offence, the police cannot arrest the accused without a warrant as well as cannot start an investigation without the permission of the court. The crimes of forgery, cheating, defamation, public nuisance, etc., fall in the category of non-cognizable crimes.
In this type of crimes, a criminal complaint is lodged with the metropolitan magistrate who is supposed to order the concerned police station to initiate an investigation. The police officer is supposed to file the charge sheet with the court which is followed by a trial. After the trial, if the accused is found guilty, the court passes the order to issue the warrant to arrest the accused.
|It is the offence in which a police officer can arrest the convict without the warrant.||It is the offence in which a police officer cannot arrest a person without the warrant.|
|The police can start a preliminary investigation without the permission of the court or without registering the FIR.||The police officer cannot start the investigation without the permission of the court.|
|These are heinous crimes like murder, rape, dowry death etc.||These crimes are not so serious like forgery, cheating, defamation etc.|
|The victim can file an FIR or make a complaint to the magistrate.||The victim can only make a complaint to the magistrate.|
|It is defined in the Section 2(c) of the Criminal Procedure Code, 1973.||It is defined in Section 2(I) of Criminal Procedure Code 1973.|
|The police officer is bound to register the FIR even without the permission of Magistrate.||The police officer is not bound to register the FIR or cannot register the FIR without prior permission of the magistrate.|
|It is a non-bailable offence.||It is a bailable offence.|