Chesham Policing Sergeant was on duty at Windsor Castle celebrations to mark Her Majesty’s 96th birthday.

PS Roy Evans from Thames Valley Police’s Neighbourhood Policing unit went to Windsor Castle to support the changing of the guard, where a crowd had gathered to wish Queen Elizabeth II happy birthday.

The nation’s longest-reigning monarch celebrated her birthday on April 21. 

She was born in 1926 to her parents King George VI and Queen Elizabeth The Queen Mother, and not presumed to be an heir to the throne - until her uncle Edward abdicated. 

PS Evans said : “Part of the Neighbourhood Sergeants duties are to facilitate the safe movement of the military during the change of the guard and that was my responsibility yesterday (April 21).

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“Lots of people attended Windsor castle both to wish HRH a happy birthday and to watch the guard change.

“The Queen's Guards played Happy Birthday during the Changing of the Guard ceremony, to mark her 96th birthday.

“It was very nice to see so many families out in Windsor, who then went over to the long walk where there was a gun salute.”

The 1st Battalion of the Coldstream Guards are the official Windsor Castle guards.

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Like a clockwork, the castle guards change duty at 11am every Tuesday, Thursday and Saturday.

On Queen’s 96th birthday, Band of the Coldstream Guards played music, while there are occasions when no music is played during the change. 

The monarch's impressive birthday comes ahead of the Platinum Jubilee celebrations marking her 70-year reign. 

When she was crowned in Westminster Abbey as the Queen, she was 27-years-old. 

Portrait of Queen Elizabeth courtesy of PA Media/henrydallalphotography.com 

Changing of the guard at Windsor Castle image courtesy of PA/Jonathan Brady