Pittsburgh Police hats with checkered bands, which are dark navy blue and gold in color, popularly known as the "Sillitoe Tartan" and named after its originator, Percy J. Sillitoe, Chief Constable of Glasgow, Scotland, in the 1930s. While the checkered band is a common police symbol in the United Kingdom, Australia and some European countries, the Chicago Police Department, Cook County Sheriff's Police, the Allegheny County Sheriff's Office, and the Pittsburgh Bureau of Police are the only police forces in the United States that have adopted it as part of their uniforms. As recently as July 1930, police were required to wear
Glasgow Police Pipe Band for its quality. It wore a tartan designed by the Chief Constable, and played two concerts annually to raise funds. Govan was annexed into Glasgow along with Partick in 1912, and the band became the City of Glasgow Police Pipe Band. In 1913 William Gray, a Gold Medal winner, replaced Hutcheon as pipe major, and the tartan was also replaced with the Royal Stewart. The band won its first World Championship in 1920, but due to Gray's focus on events other than competition the next time the band won the Worlds was 1936. Gray was succeeded in 1932 by John