6. The Minister or the Deputy Minister may send for and examine on oath all such persons as he deems necessary to examine, touching any matter upon which his action is required, and may order all such persons to bring with them such papers, plans, books, documents and things required for the proof of such matter, and may pay such persons reasonable compensation for their time and disbursements.
Such persons shall attend upon such summons after due notice, under penalty of a fine of $20 in each case.
R. S. 1964, c. 138, s. 6.