3SThe person appointed may by notice in writing require any person—
(a)to attend at the time and place set forth in the notice to give evidence or to produce any books or documents in his custody or under his control which relate to any matter in question at the inquiry; or
(b)to furnish within such reasonable period as is specified in the notice such information relating to any matter in question at the inquiry as the person appointed may think fit and as the person so required is able to furnish:
Provided that—
no person shall be required in obedience to such a notice to attend at any place which is more than ten miles from the place where he resides unless the necessary expenses are paid or tendered to him; and
nothing in this paragraph shall empower the person appointed to hold the inquiry to require any person to produce any book or document or to answer any question which he would be entitled, on the ground of privilege or confidentiality, to refuse to produce or to answer if the inquiry were a proceeding in a court of law.