Secrecy Preserving Protocol

From the Metro 2008-1-15:

.... he claimed a mystery royal had warned that Princess Diana's intimate conversations might be bugged. In a bid to protect the person's identity, Mr Burrell insisted on writing the name on a piece of paper and passing it to the coroner. Lord Scott-Baker then revealed three members of the family not named -- the Queen, the Duke of Edinburgh and the Duchess of York....

Nice balance.