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
Northern Rhodesia Police men left Livingstone for Kasama to guard against invasion from German East Africa. The British South Africa Police sent a detachment to guard the Falls Bridge. On 22 September a combined force of BSAP and NRP occupied the German post at Schuckmannsburg in the Caprivi Strip. The District Police were gradually absorbed into the Military. Sillitoe left for the North never to return. Twenty years later as Chief Constable of Glasgow he was to introduce the chequered cap band now worn by police throughout Great Britain. In the North German attacks on Abercorn and Fife were repulsed. The NRP with