Commissioners empowered to summon witnesses and examine them on oath

(1) Commissioners acting under this Act shall have power to summon witnesses and to call for the production of books, plans and documents, and to examine witnesses and parties concerned on oath. (2) No Commissioner shall be liable to any action or suit for any matter or thing done by him as such Commissioner. (3) All summonses for the attendance of witnesses, or other persons, or the production of documents, may be in the form 7 given in the Schedule, and shall be signed by one of the (4) Oaths may be administered by any one of the Commissioners, or by their Secretary.