Check (pattern) a board used for playing checkers and chess, and in heraldry. The check pattern has a number of symbolic meanings. In auto racing, the chequered flag is displayed at the finishing line to signal that the race has finished. It originates from the "checkers" who watched the finishing line and checked when cars had finished the race. They began using chequered flags to identify themselves. In some countries, the check pattern has become a symbol of the police. Known as "Sillitoe Tartan", it was first used in Glasgow in the 1930s and was inspired by a pattern worn by some
City of Glasgow Police to prevent crime and detect offenders. The policemen they envisaged would not be mere watchmen and what they had written down was the concept of "Preventive Policing", 40 years before Sir Robert Peel established preventive policing in the Metropolitan area of London in 1829. In February 1789 this force of truly professional police took to the streets. During the following eleven years, Glasgow City fathers tried to get their "Police Bill" before Parliament, but without success. In the meantime, the small, pioneering, Glasgow police force, led by the Master of Police, Richard Marshall, was struggling to maintain its existence due