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
Police vehicles in the United Kingdom covert cars and unmarked transport vehicles for discreet escort of civilians or prisoners. Marked variants of these cars feature a single row of battenburg police markings on each side of car with 'Police' lettering on the front and rear of the vehicle. Badges or slogans from police forces can be found on the front and sides of marked cars in most areas to identify the force it belongs to. Most marked cars also have hi-vis chevrons on the back. These vehicles are used for attending 999 calls and patrolling in targeted areas, where a police officer may be needed more