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 Turnbull Street opened as Headquarters of the Glasgow Police on 23 March 1906. On 5 November 1912, by Act of Parliament, the boundaries of the City were again extended and the force merged with the Govan and Partick Burgh Police. In the First World War 300 Glasgow police officers enlisted in the Armed Forces. As a result, the force employed 400 temporary Constables and increased the Special Constabulary to 3000 to guard strategic buildings and factories within the City. In 1915, the Chief Constable ordered policemen to desist from enlisting in the Armed Forces due to the depletion of the