In last week’s ‘Trading in SIPs: all concerned have to raise their game’ (BT, Hock Lock Siew, Jan 25), we made the point that new rules governing the trading of Specified Investment Products (SIPs) that require investors as well as dealers to pass exams before trading in SIPs could do with a bit of fine-tuning in order to be truly useful in safeguarding investors’ interests. Two areas spring to mind - the present inclusion of stocks that are listed on foreign exchanges as SIPs and the people who are exempt from the exams.