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 vehicles in the United Kingdom Mercedes-Benz Sprinter, are widely used across the United Kingdom and incorporate a cage to hold prisoners. Although in the United States it is usual to carry a prisoner in a police car, some British forces do not permit this, as most police cars have no barrier between the front and back seats to protect the officers. Each police force has different policies on prisoner transportation. Some allow compliant prisoners to be transported in response cars, ensuring that one officer sits in the rear with the prisoner, and the prisoner sits behind the passenger seat. Larger vans are also used to