8.—(1) If it appears to the Administrator expedient so to do for the purpose of collecting Japanese property or discharging any of his other functions, the Administrator may, by notice in writing—
(a)require any person to produce, at a time and place specified in the notice, to the Administrator, or to any person nominated by him for the purpose, any books or documents specified or described in the notice being books or documents which are in his custody or under his control or
(b)require any person to furnish to the Administrator such returns, accounts or other information as may be specified or described in the notice, and specify the time, the manner and the form in which any such returns, accounts or information are to be furnished.
(2) The Administrator may take copies of any books or documents produced under sub-paragraph (a) of the foregoing paragraph.