s 19 Exemption from answering questions or producing documents
If any person ordered to attend or produce any paper, book, record, or document before the House or any committee refuses to answer any question that may be put to him or to produce any such paper, book, record, or document on the ground that the same is of a private nature and does not affect the subject of enquiry, the President, or the Chairman of the committee, as the case may be, may report such refusal with the reasons therefor, and the House may thereupon excuse the answering of such question or the production of such paper, book, record, or document or may order the answering or production thereof.