For the purpose of discovering violations of this chapter or securing information required by the Board in the administration and enforcement of this chapter, the Board may at any time investigate the loans and business, and examine the books, accounts, records, and files used in the business, of every person engaged in the business of a finance lender or broker, whether the person acts or claims to act as principal or agent, or under or without the authority of this chapter. For the purpose of examination, the Board has free access during business hours to the offices and places of business, books, accounts, papers, records, files, safes, and vaults of all these persons.