such matters. In the first place, arrest of an accused is a part of the investigation and is within the discretion of the investigating officer. Section 41 of the Code of Criminal Procedure provides for arrest by a police officer without an order from a Magistrate and without a warrant. The Section gives discretion to the police officer who may, without an order from a Magistrate and even without a warrant, arrest any person in the situations enumerated in that section. It is open to him, in the course of investigation, to arrest any person who has been concerned with any cognizable offence or against whom reasonable complaint has been made or credible information has been received, or a reasonable suspicion exists of his having been so concerned. Obviously, he is not expected to act in a mechanical manner and in all cases to arrest the accused as soon as the report is lodged. In appropriate cases, after some investigation, the investigating officer may make up his mind as to whether it is necessary to arrest the accused person. At that stage the Court has no role to play. Since the power is discretionary, a police officer is not always bound to arrest an accused even if the allegation against him is of having committed a cognizable offence. Since an arrest is in the nature of