Any person claiming or receiving compensation or whose award of compensation is being reviewed shall furnish all such information as the Secretary of State may at any time reasonably require; and he shall verify that information in such manner, including the production of books or of original documents in his possession or control, as may be reasonably so required.

Such a person shall, on receipt of reasonable notice, present himself for interview at such place as the Secretary of State may reasonably require; and any person who attends for interview may, if he so desires, be represented by his adviser.