Power to obtain information.

The Director General, or any Nominated Authority may, for the purpose of discharging his duties under this Act, require the owner or occupier of any building or other property as may be specified to supply information with respect to the character of such "building or other property as may be specified, the available water supplies and means of access there-to any other material pai1iculars, and such owner or occupier shall furnish all the information in his possession.