12. A Sanitary Officer may, within any mining settlement for which he is appointed,- (a) make such examination and inquiry as he thinks fit, in order to ascertain whether the provisions of this Act and of the rules, bye-laws and orders made thereunder are observed; (b) enter, with such assistants (if any) as he thinks fit inspect and examine any mining settlement or any part thereof, at all reasonable times by day or by night; (c) examine into, and make inquiry respecting, the sanitary condition of any mining settlement or any part thereof, and the sufficiency of the rules and bye-laws or the time being in force in the settlement; and (d) do all other things required of him by or under this Act.