§ 359-h. Destruction of certain records, books and other data by the attorney-general. Any and all books, registers, cards, indices, office records and other documentary evidence seized and held by the department of law under a subpoena or order of the court in proceedings commenced under Article 23-a of the general business law, may be destroyed after a period of six years from the date of closing said case on its office records, when no proceeding shall have been instituted to compel the return of such records by the defendants.