Britain's tallest policeman, 7 feet 2 inch PC Anthony Wallyn, was among the officers standing guard outside the Queen's London hospital tonight.
To the delight of the photographers gathered outside King Edward VII Hospital, he was partnered by the smallest officer in the Met's Westminster Borough Support Unit, PC Tony Thich, who measures 5 feet 6 inches.
PC Wallyn, who wears size 17 shoes, said he gets "100-500 requests for a photo" every day, and hopes he may be able to add one with the hospital's most notable current patient.
"It would be a nice photo," he joked of the chance to be snapped next to the 5 feet 4 inch tall monarch.
More top news
There was an "alarming" increase in the number of death sentences issued around the world last year, Amnesty International has said.
Paracetamol is ineffective at treating back pain, Australian researchers say.
Madonna says she still cannot bring herself to watch footage of the moment she fell on stage while performing at the Brit Awards.