Each licensee shall keep and use in the licensee's business such books, accounts and records as well as enable the city to determine whether such licensee is complying with the provisions of this chapter. Such city may examine or cause to be examined the books, accounts, records and files used by any licensee or by any other person engaged in the business of pawnbroking or dealing in precious metals, irrespective of whether such person acts or claims to act as principal, agent or broker, or under or without authority of this chapter. The duly designated representatives of the city shall have and be given free access to all such books, accounts, papers, records, files, safes and vaults. (Prior code § 6-604)