He has policed student riots, football matches and state funerals, so a break was on the cards for a brave London police horse. But 17-year-old Chiswick has spent his retirement having serious surgery.
Vets noticed there was something wrong when the horse went right off his food and started losing weight rapidly.
Ria Chatterjee has his story.
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The impact of the 4mph crash pushed the buffers back by over a metre.
The 18-month-old puppy lives with owners Chris & Gillian French and their 10-year-old daughter Mia at the Mitre pub in Richmond-upon-Thames.
Detectives are hunting two suspects after the 23-year-old victim was left with a broken rib and a deep cut to his lung.