All parties to any marketing agreement, and all handlers subject to an order, shall severally, from time to time, upon the request of the Secretary, furnish him with such information as he finds to be necessary to enable him to ascertain and determine the extent to which such agreement or order has been carried out or has effectuated the declared policy of this chapter and with such information as he finds to be necessary to determine whether or not there has been any abuse of the privilege of exemptions from the antitrust laws. Such information shall be furnished in accordance with forms of reports to be prescribed by the Secretary. For the purpose of ascertaining the correctness of any report made to the Secretary pursuant to this subsection, or for the purpose of obtaining the information required in any such report, where it has been requested and has not been furnished, the Secretary is authorized to examine such books, papers, records, copies of income-tax reports, accounts, correspondence, contracts, documents, or memoranda, as he deems relevant and which are within the control (1) of any such party to such marketing agreement, or any such handler, from whom such report was requested or (2) of any person having, either directly or indirectly, actual or legal control of or over such party or such handler or (3) of any subsidiary of any such party, handler, or person.