Gujarat Police Act, 1951
The Commissioner and the District Superintendent in areas under their respective charges may, whenever in his opinion such action is necessary, authorise such Police Officer as he thinks fit to erect barriers on any street for the purpose of stopping temporarily vehicles driven or such street and satisfy himself that the provisions of any law for the time being in force have not been contravened in respect of any such vehicle or by the driver of or the person in charge of such vehicle. The said authority may also make such orders as it deems fit for regulating the use of such barriers.