According to the CrPC, the police are primarily responsible for investigating cognizable offenses, which are serious crimes that can be investigated without a warrant.

The primary purpose of an FIR is to provide information about the offense to the police, allowing them to initiate an investigation and gather evidence.

Depending on the severity of the offense and the stage of the proceedings, bail can be granted by the Magistrate Court, Sessions Court, High Court, or Supreme Court.

The maximum period of detention for an accused person during investigation is 15 days, unless extended by a court order for specific reasons.

Section 337 of the CrPC provides for the protection of witnesses during a trial, allowing the court to take measures such as keeping the identity of the witness confidential or conducting the proceedings in camera.

The principle of 'res judicata' in criminal proceedings means that a matter once decided by a competent court cannot be reopened or relitigated, preventing multiple trials for the same offense.

A summary trial under the CrPC aims to expedite the trial process for minor offenses, allow the accused to plead guilty and receive a lesser sentence, and provide a simplified procedure for certain types of cases.

The Sessions Court has the jurisdiction to try offenses punishable with death or life imprisonment, as well as other serious offenses specified in the CrPC.

The primary role of a Public Prosecutor in a criminal trial is to represent the state, present evidence against the accused, and seek a conviction.

The purpose of a charge in a criminal trial is to inform the accused of the specific offense they are being charged with, allow them to prepare their defense, and enable the court to determine the appropriate punishment if the accused is found guilty.

Section 202 of the CrPC outlines the procedure for conducting a preliminary inquiry by a Magistrate, including the examination of witnesses and the recording of their statements.

The final report submitted by the police after investigation serves to inform the Magistrate about the outcome of the investigation, recommend further action, and provide evidence against the accused.

Section 228 of the CrPC outlines the procedure for conducting a trial by jury, including the selection of jurors, the presentation of evidence, and the verdict.

A 'habeas corpus' writ in criminal proceedings is used to challenge the legality of a person's detention and to secure their release from unlawful confinement.

Section 260 of the CrPC outlines the procedure for conducting a summary trial, including the examination of witnesses and the recording of their statements.