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
Police cadets in the United Kingdom 9 at which point they become eligible to join the senior VPC. On Sunday 14 June 2009, the Metropolitan Police Volunteer Police Cadets took part in what is believed to have been the largest ever formal parade of young people, to celebrate the 22nd anniversary of the establishment of the Volunteer Police Cadet force in what was named as the "colour parade" and was carried out on Horse Guard's Parade. Each cadet troop was formally passed a Standard (flag) under the review of the Metropolitan Police Commissioner, Sir Paul Stephenson, and other senior officers of the Metropolitan Police. The parade