194 The Constitution of the Democratic Socialist Republic of Sri Lanka Provided that every such order shall cease to be in force as soon as the President is satisfied that public order has been restored or on the expiry of thirty days from the date of the order, whichever is earlier. 12:1 The Provincial Division shall be responsible for the preservation of public order within the Province and the prevention, detection and investigation of all offences (except the offences specified in the Schedule) and subject to the powers of the Attorney-General in terms of the Code of Criminal Procedure Act, the institution of prosecutions in the relevant Courts in respect of such offences. The National Division of the Sri Lanka Police Force shall be responsible for the prevention, detection and investigation of all offences specified in the Schedule and subject to the powers of the Attorney-General in terms of the Code of Criminal Procedure Act, for the institution of prosecutions in the relevant Courts in respect of such offences. 12:2 Where the Chief Minister seeks the assistance of the National Division to preserve public order within a Province, the I.G.P. shall deploy such personnel of the National Division as are necessary for the purpose and place them under the control of the D.I.G. of the Province. 12:3 Where a State of Emergency is declared in the Province, the I.G.P. may deploy such units of the National Division as he deems necessary in any Province for the restoration and maintenance of public order within such Province. 12:4 Any offence which may ordinarily be investigated by a Provincial Division may be investigated by the C.I.D. or any other unit of the National Division – (a) where the Chief Minister requests, that such investigation be undertaken by the C.I.D. or any other unit of the National Division; and (b) where the I.G.P. is of opinion that an investigation of such offence by the C.I.D. or any other unit of the National Division is necessary, in the public interest and directs, after consultation with the Chief Minister and the approval of the AttorneyGeneral, that such offence be investigated by the C.I.D. or any other unit of the National Division. 13. The National Division shall perform all the functions vested in a Provincial Division, in any Province, for a period of one year or until a Provincial Division is established in such Province, whichever is earlier.