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
White v Chief Constable of the South Yorkshire Police White v Chief Constable of the South Yorkshire Police White v Chief Constable of the South Yorkshire Police was a 1998 case in English tort law in which police officers who were present in the aftermath of the Hillsborough disaster sued for post traumatic stress disorder. The claim was rejected by the House of Lords on the basis that none of the claimants could be considered "primary victims" "since none of them were at any time exposed to personal danger nor reasonably believed themselves to be so". The decision could have been disposed of in the manner of Chadwick v