Gujarat Police Act, 1951
Whenever it shall appear areas for which a Commissioner has been appointed under section to the Commissioner and in other area or areas to which State Government may, by notification in the Official Gazette extend the provisions of this section to the District Magistrate, or the Sub-Divisional Magistrate empowered by the State Government in that behalf (a) that the movements or acts of any person are causing or is calculated to cause alarm, danger or harm to person or property, or (b) that there are reasonable grounds for believing that such persons is engaged or is about to be engaged in the commission of an offence involving force or violence or an offence punishable under Chapter XII, XVI or XVII the Indian Penal Code, or in the abetment of any such offence, and when in the opinion of such officer witnesses are not willing to come forward to give evidence in public against such person by reason of apprehension on their part as regard the safety of their person or property, or (c) that an out break epidemic diseasis likely to result from the continued residence of an immigrant, the said officer may, by an order in writing duly served on him or by heat of drum or otherwise as he thinks fit, direct such person or immigration to conduct himself if as shall seem necessary in order to prevent violence and from or the outbreak or spread of such disease or to remove himself outside the area within the local limits of his jurisdiction or such area and any district or districts, or any part thereof, contiguous thereof by such route and with such time as the said officer may prescribe and not to enter or return to the said area or the area and such contiguous districts, or part thereof as the case may be, from which he was directed to remove himself.