JUDGMENT - V.P. TIPNIS, J.:---By this application, the petitioners are challenging the legality and correctness of the order of the learned Metropolitan Magistrate, 21st Court, Bandra, Bombay, dated 7th November, 1987 remanding the petitioners and three others into police custody till 20th November, 1987. 2. The Inspector of Police, Kandivli Police Station, made a report dated 7th November, 1987, to the learned Metropolitan Magistrate under section 151 of the Code of Criminal Procedure that the marginally noted persons therein were arrested on 7th November, 1987. The report stated that the accused persons are adversely known on the record of the Police Station and that they are mischief mongers, opportunists and are with bad record. Some of them were also involved in serious offences. Taking into consideration the present law and order situation, the said persons are likely to take chance of the present situation and may get themselves involved in the commission of cognizable offences thereby disturbing public peace and tranquillity. In order to prevent them form doing so, they have been looked up under section 151(3) of the Code of Criminal Procedure. The application requested the learned Magistrate to remand the said persons in police custody for a period of fortnight. The application specifically mentioned that as further inquiries into the case are to be made, the accused should be remanded to police custody. Shri Hombalkar, the learned Public Prosecutor appearing for the State, has produced an additional report of the police which, he stated, was brought to the notice of the learned Magistrate giving the record of the cases against the marginally noted accused persons. Upon this application, the learned Metropolitan Magistrate passed the following order: "Accused Nos. 1 to 5 and 7 no bail. Accused No. 6 discharged. Accused Nos. 1 to 5 and 7 ordered to be remanded into police custody till 20-11-87". It is contended on behalf of the petitioners that the learned Magistrate has not supplied any grounds in support of his order to the petitioners or for that matter to any of the accused persons. 3. Section 151 of the Code of Criminal Procedure finds its place in Chapter XI which is titled as "PREVENTIVE ACTION OF THE POLICE". The said section is under:--- "151. 3. Section 151 of the Code of Criminal Procedure finds its place in Chapter XI which is titled as "PREVENTIVE ACTION OF THE POLICE". The said section is under:--- "151. (1)A Police Officer knowing of a design to commit any cognizable offence may arrest, without orders from a Magistrate and without a warrant, the person so designing, if it appears to such officer that the commission of the offence cannot be otherwise prevented. (2) No person arrested under sub-section (1) shall be detained in custody for a period exceeding twenty-four hours from the time of his arrest unless his further detention is required or authorised under sub-section (3) or under any other provisions of this Code or of any other law for the time being in force. (3)(a) Where a person is arrested under this section and the office making the arrest, or the officer in-charge of the police station before whom the arrested person is produced, has reasonable grounds to believe that the detention of the arrested person for a period longer than twenty-four hours from the time of arrest (excluding the time required to take the arrested person from the place of arrest to the Court of a Judicial Magistrate) is necessary, by reason that--- (i) the person is likely to continue the design to commit, or is likely to commit, the cognizable offence referred to in sub-section (1) after his release; and (ii) the circumstances of the case are such that his being large is likely to be prejudicial to the maintenance of public order, the officer making the arrest, or the officer in-charge of the police station, shall produce such arrested person before the nearest Judicial Magistrate, together with a report in writing stating the reasons for the continued detention of such person for a period longer than twenty four hours. (b) Notwithstanding anything contained in this Code or any other law for the time being in force, where the Magistrate before whom such arrested person is produced is satisfied that there are reasonable grounds for the temporary detention of such person in custody beyond the period of twenty-four hours he may, from time to time, by order remand such person to such custody as he may think fit: Provided that, no person shall be detained under this section for a period exceeding fifteen days at a time, and for a total period exceeding thirty days from the date of arrest of such person. (c) When any person is remanded to custody under Clause (b), the Magistrate shall, as soon as may be, communicate to such person the grounds on which the order has been made and such person may make a representation against the order to the Court of Session. The Sessions Judge may, on receipt of such representation, after holding such inquiry as he deems fit either reject the representation, or if he considers that further detention of the arrested person is not necessary, or that it is otherwise proper and just so to do, may vacate the order and the arrested person shall then be released forthwith." It is obvious that the said section gives wide powers to the police to arrest, without orders from the Magistrate and without a warrant, any person if he knows that such person is designed to commit any cognizable offence and if it appears to such officer that the commission of the offence cannot be otherwise prevented. The provisions of sub-section (2) enjoins upon the Police Officer to obtain authorisation. Sub-section (2) of the said section further provides that no person arrested under sub-section (1) shall be detained in custody for a period exceeding twenty-four hours unless his further detention is required or authorised under sub-section (3) or under any other provisions of the Code. The provisions of sub-section (2) enjoins upon the Police Officer to obtain authorisation. Sub-section (2) of the said section further provides that no person arrested under sub-section (1) shall be detained in custody for a period exceeding twenty-four hours unless his further detention is required or authorised under sub-section (3) or under any other provisions of the Code. Under sub-section (3) of section 151, if the officer arresting a person has reasonable grounds to believe that the detention of the arrested person for a period longer than twenty-four hours from the time of arrest is necessary, by reason that the said person is likely to continue the design to commit, or is likely to commit, the cognizable offence referred to in sub-section (1) after his release, and the circumstances of the case are such that his being at large is likely to be prejudicial to the maintenance of public order, he shall produce such arrested person before the nearest Judicial Magistrate, together with a report in writing stating the reasons for the continued detention of the person for a period longer than twenty-four hours. Under the provisions of sub-section (3)(b), the Magistrate before whom such arrested person is produced is satisfied that there are reasonable grounds for the temporary detention of such person in custody beyond the period of twenty four hours, he may, from time to time, by order remand such person to such custody as he may think fit. However, such person shall not be detained for a period exceeding 15 days at a time and for a total period exceeding 30 days from the date of the arrest. The provisions of section 151(3)(c) provide that when any such person is remanded to custody under Clause (b), the Magistrate shall, as soon as may be, communicate to such person the grounds on which the order has been made and such person may make a representation against the order to the Court of Session. The Sessions Judge may, on receipt of such representation, after holding such inquiry as he deems fit, either reject the representation, or if he considers that further detention of the arrested person is not necessary, or that it is otherwise proper and just so to do, may vacate the order and the arrested person shall then be released forthwith. 4. The Sessions Judge may, on receipt of such representation, after holding such inquiry as he deems fit, either reject the representation, or if he considers that further detention of the arrested person is not necessary, or that it is otherwise proper and just so to do, may vacate the order and the arrested person shall then be released forthwith. 4. The powers of the police to arrest a person under section 151 are clearly a curtailment of the liberty granted under the Constitution. However, enough precaution is taken to see that the said curtailment of liberty is reasonable and for that purpose the arrested person has to be produced within twenty-four hours with a written report by the Police Officer before the nearest Judicial Magistrate and it is only when the Magistrate before whom such arrested person is produced is satisfied that there are reasonable grounds for the temporary detention beyond twenty-four hours, he is given power to order remand as provided and with the limitations mentioned in Clause (b) of sub-section (3) of section 151. The provisions of section 151(3)(c) make it amply clear that when any person is remanded, the Magistrate shall, as soon as may be, communicate to such person the grounds on which the order has been made. This is with a view to enable the person detained to make an effective representation to the Court of Session and the section further gives wide discretion to the Sessions Judge to make proper orders either continuing the detention or releasing the person concerned. At two stages, judicial supervision over the matter is granted. In the facts before me, the learned Metropolitan Magistrate has not followed the mandatory provisions of communicating, as soon as may be the grounds on which the order has been made. This has, obviously, resulted into denial of valuable right of making an effective representation to the Sessions Court. If that be so, the continued detention of the petitioners and other accused in the matter is, obviously, illegal and without any authority of law. In the circumstances, the petitioners are entitled for an order from this Court for being released. 5. Accordingly, this application is allowed. I order that the petitioners shall be released forthwith from the custody, unless required in any other case. The rule is made absolute. Application allowed. -----