**Core Concept:** The Criminal Procedure Code (Cr.P.C.) is a comprehensive law in India that deals with the procedure to be followed in criminal trials. Cognisable offense is a type of offense that can be taken into custody without the need for a magistrate's warrant.

**Why the Correct Answer is Right:** The correct answer, Section 151 of the Cr.P.C., deals with "arrest without warrant" which allows a police officer to arrest a person in cases of cognizable offenses. This section empowers the police to arrest a person without a warrant when the offense is considered cognizable.

**Why Each Wrong Option is Incorrect:**

A. Section 150 of Cr.P.C., "arrest without warrant in cases of non-cognizable offenses," is incorrect because it deals with arresting a person without a warrant for non-cognizable offenses.

B. Section 152 of Cr.P.C., "disorderly conduct," is incorrect because it refers to a specific offense, not the arrest procedure for cognizable offenses.

C. Section 155 of Cr.P.C., "arrest without warrant for drunkenness," is incorrect because it deals with arresting people for drunkenness, not cognizable offenses in general.

D. Section 157 of Cr.P.C., "discovery and recovery of stolen property," is incorrect because it refers to recovering stolen property, not the arrest procedure for cognizable offenses.

**Clinical Pearl:** Understanding the distinction between cognizable offenses and non-cognizable offenses is essential for medical professionals, as it impacts law enforcement procedures during medical emergencies or legal interventions involving patients. A cognizable offense allows law enforcement to arrest a person without a warrant, while non-cognizable offenses require a warrant for arrest.