law: 2[21. Inspection of land and premises.
  Any person authorized in this behalf by the Central Government or by the Board or any member authorized by the Chairman in writing or 3[any officer of the Board may] at any reasonable time inspect any place of business of a dealer or any factory or other premises of a 4[manufacturer, for] the purpose of verifying any statement or return submitted under this Act or for any other purposes of this Act.]