Sophisticated investor ?

The 2006 prospectus for Blairmore Holdings Inc makes specific requirements of investors, and suggests Mr and Mrs Cameron needed to be 'certified'....

This Prospectus is being issued in the United Kingdom by the Fund to, and/or is directed at, persons to whom it may lawfully be issued or directed at under The Financial Services and Markets Act 2000 (Financial Promotion) Order 2001 including persons who are authorised under the Act (“authorised persons”), certain persons having professional experience in matters relating to investments, high net worth companies, high net worth unincorporated associations or partnerships, trustees of high value trusts and persons who qualify as certified sophisticated investors. The Shares are only available to such persons in the United Kingdom and this Prospectus must not be relied or acted upon by any other persons in the United Kingdom. 

In order to qualify as a certified sophisticated investor a person must a) have a certificate in writing or other legible form signed by an authorised person to the effect that he is sufficiently knowledgeable to understand the risks associated with a particular type of investment and b) have signed, within the last 12 months, a statement in a prescribed form declaring, amongst other things, that he qualifies as a sophisticated investor in relation to such investments.