Reports from his early training show that Merlin was sometimes naughty and spirited - but once his training was complete he was disciplined enough to maintain order at some of the toughest and most high-profile events in London.

From the Royal Wedding to the London riots, Merlin's brave exploits for the Met as a top police horse have earned him celebrity status. Featuring in-depth interviews with officers who work with Merlin day-to-day, this book delves into the surprising history of British police horses and how they are a key part of law enforcement around the world.