Securities company is required to tape record advice, buying and selling orders, and dialogue about investment giving to clients. The recording aims to prevent dispute on passing of buying and selling orders between client and securities company. Moreover, it is the examining mechanism of securities broker to ensure that marketing staff gives good advice to client. The requirement to tape record is announced in clause 13 of the Notification of the SEC No. KorThor. 42/2543 dated September 26, 2000 and has been made publicly known to all involved parities, namely securities company, marketing staff and client. As such, the tape recording is the routine operation, and this is the suggestion that the SEC always gives investors to pass buying and selling orders through the phone line with recording device for investors? own interest.