This excerpt taken from the BNCN DEF 14A filed Dec 31, 2009.
Who can attend the Special Meeting?
All shareholders as of the record date, or their duly appointed proxies, may attend the Special Meeting. If you attend, please note that you may be asked to present valid picture identification, such as a drivers license, military identification or passport. If you hold your shares in street name (that is, through a broker or other nominee), you will need to bring a copy of a brokerage statement reflecting your stock ownership as of the record date, obtain a proxy form from your broker and check in at the registration desk at the meeting.