http://en.wikipedia.org/wiki/Chief_Superintendent The senior detective and commander of the Criminal Investigation Department in most forces is a Detective Chief Superintendent (DCS) (although in the Metropolitan Police, a DCS may only command a branch of the CID) and the rank of Chief Superintendent may also be used by the commanders of other headquarters departments.
http://www.pbs.org/wgbh/masterpiece/foyleswar/ Spring and summer 1940: World War II has just begun and England looks all but doomed in the face of an inevitable German invasion. Still, someone has to fight crime on the home front and who better than Christopher Foyle? Michael Kitchen (Reckless, Oliver Twist) stars as the dogged detective chief inspector who faces four difficult cases on Foyle's War.