Sir Jeffrey, who has acted as unpaid and part-time special adviser to six trade and industry secretaries, yesterday added a seventh to his belt.

Since then, Grady has served as a part-time adviser to a number of political figures.

In 1988, he worked as a part-time adviser to Michael Dukakis's presidential campaign.

Ms. Devine, hired as a part-time technical adviser when the show began, was offered the job as a writer after several months.

Sir David Manning, the former British ambassador to Washington, works as a part-time adviser to the princes.

A teacher working as a part-time adviser helps most of those students plan their high school course schedules, perhaps moving English from first period to fourth.

"You are talking about anywhere from the top level presidency of a company foundation, to top community-relations specialists, to part-time advisers."

The Met said it had employed him as a part-time adviser on "strategic communications".

He insists that he is coming back to lend a hand as a part-time adviser, not to try to be the struggling com- pany's savior.

In 2009, the Obama administration tapped him to become a part-time adviser.