Whenever it shall appear to the Commission, either upon complaint or otherwise, that the provisions of this subchapter or of any rule or regulation prescribed under the authority thereof, have been or are about to be violated by any person, it may in its discretion require, and in any event shall permit, such person to file with it a statement in writing, under oath or otherwise, as to all the facts and circumstances relevant to such violation, and may otherwise investigate all such facts and circumstances.

For the purposes of any investigation or any proceeding under this subchapter, any member of the Commission or any officer thereof designated by it is empowered to administer oaths and affirmations, subpena witnesses, compel their attendance, take evidence, and require the production of any books, papers, correspondence, memoranda, contracts, agreements, or other records which are relevant or material to the inquiry. Such attendance of witnesses and the production of any such records may be required from any place in any State or in any Territory or other place subject to the jurisdiction of the United States at any designated place of hearing.