Royal Safety Officer Simon Morgan, 52, who served within the Queen’s safety element, confirmed that the method started shortly after Charles grew to become monarch.
He stated: “Even the king stated in his acceptance that he’ll take this function for so long as life permits him to… it is received to be behind your thoughts, and from the police, we have to begin planning once more for the long run.”
Sources inside the royal family say whereas Charles continues to hold out official duties, officers from the Cupboard Workplace and Buckingham Palace have already begun sensible walk-throughs of the Menai Bridge protocol.
A senior palace aide, who requested to not be named, stated: “These are rehearsals nobody needs to do, however everybody needs to be prepared. Each element is deliberate – from who calls whom to how flags are lowered.”
The plan dictates the king’s non-public secretary would be the first to inform the British Prime Minister and the Privy Council Workplace of the dying.
From there, a sequence of scripted calls – often known as the “name cascade” – will inform cupboard secretaries, ministers, and senior civil servants.
As soon as the cascade is full, flags throughout Whitehall might be lowered to half-mast and an announcement might be issued by Buckingham Palace.
As with Queen Elizabeth’s dying, the day Charles dies might be known as D-Day, adopted by D+1, D+2 and so forth.
Prince William, 42, will instantly accede to the throne, whereas Catherine, Princess of Wales, 43, will possible be styled Queen.