Trust is the foundation of the BBC: we are independent, impartial and honest.

The above statement is the first of the six 'values' which are printed on the back of BBC Staff ID cards.

Last year the BBC came in for a great deal of criticism about deception of the public. Mark Thompson, the Director-General took a number of steps to restore confidence. In January this year he said: Trust in a given institution may be based on a great tradition and great inherited values, but it depends on what you do today. It has to be earned and earned again.

More soon.