(1) The State Government may, if satisfied with respect to any person that with a view to preventing him from acting in any manner prejudicial to the maintenance of public order, it is necessary so to do, make an order directing that such person be detained.
(2) If, having regard to the circumstances prevailing or likely to prevail in any area within the local limits of the jurisdiction of a District Magistrate or a Commissioner of Police, the State Government is satisfied that it is necessary so to do, it may by order in writing, direct, that during such period as may be specified in the order such District Magistrate or Commissioner of Police may also, if satisfied as provided in sub-section (1), exercise the powers conferred by the said sub-section :
Provided that the period specified in the order made by the State Government under this sub-section shall not, in the first instance, exceed [six months] but the State Government may, if satisfied as aforesaid that it is necessary so to amend such order to extend such period from time to time by any period not exceeding [six months] at any one time.
(3) When any order is made under this section by an officer mentioned in sub-section (2), he shall forthwith report the fact to the State Government, together with the grounds on which the order has been made and such other particulars as, in his opinion, have a bearing on the matter, and no such order shall remain in force for more than twelve days after the making thereof, unless, in the meantime, it has been approved by the State Government.