Oaths: Affidavits: Subpoena.
Section 8
SEC. 8. Oaths: Affidavits: Subpoena.- The Secretary of Labor or the Chairman of the Wage Board shall have the power to administer oaths, to take or cause to be taken the deposition of witnesses and to require by subpoena the attendance and testimony of witnesses and the production of all books, records, and other evidence relative to any matter under investigation. In case of failure of any person to comply with a subpoena lawfully issued under this section or on the refusal of any witness to produce evidence or to testify to any matter regarding which he may be lawfully interrogated, it shall be the duty of the proper court of First Instance, upon application of the Secretary of Labor, or the Chairman of the Wage Board, to compel obedience by proceedings for contempt, as in the case of disobedience of the requirements of a subpoena issued by such court or a refusal to testify therein. The Secretary of Labor or the Chairman of the Wage Board shall have the power to certify to official acts. No person shall be excused from attending and testifying or from producing books, papers, correspondence, memoranda, contracts, agreements, or other records and documents before the Secretary of Labor or a Wage Board, or in obedience to the subpoena of the Secretary of Labor or a Wage Board or in any cause or proceeding instituted under this Act, on the ground that the testimony or evidence, documentary or otherwise, required of him may tend to incriminate him or subject him to a penalty for forfeiture; but no individual shall be prosecuted or subjected to any penalty or forfeiture for or on account of any transaction, matter or thing concerning which he is compelled to testify or produce evidence, documentary or otherwise, after having claimed his privilege against self-incrimination, except that such individual so testifying shall not be exempt from prosecution and punishment for perjury committed in so testifying.