City of London market constabularies

City of London Market Constables are the police that protect the markets in the City of London (also known as the "Square Mile"). They make sure that markets are safe and orderly, and make sure nobody is breaking the law. They also help when people need help with things like paying for goods or finding their way around the market. They wear bright green uniforms so that everyone in the market can find them easily, and they always have a friendly smile.