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 but will generally carry equipment and lighting for use at traffic accidents, such as cones, red and blue boot or side police lights, warning signs and basic first aid equipment. Many response cars in the UK now also carry mobile technology which can be linked to police databases and automatic number plate recognition technology. Most response cars have sirens. The Vauxhall Astra or Ford Focus are a classic but key car in police response units. In 2017/2018, the Peugeot 308 and Ford Transit Custom are far becoming popular response vehicles. There are times when police feel the need to increase