East Midlands Deputy Chief Constable Paul Gibson said: "We are a proud Police Service, which operates with Her Majesty’s crown upon our badges. This sad news resonates with us all.
"Our thoughts are with The Royal Family at this difficult time, who have not only lost their Queen, but also a dearly loved mother, grandmother and great-grandmother.
“Her Majesty was many things to many people. We acknowledge and pay tribute to the lifetime of unwavering commitment given by our longest reigning monarch. It has been an honour to serve her and the country she so dutifully served herself.”