"Scotland is divided into several police regions. Rebus works for Lothian and Borders Police, whose "beat" covers Edinburgh and most points south until you reach the English border. The region's HQ is based at Fettes Avenue in Edinburgh, and is often referred to by officers as "the Big House." Other main police stations in the capital include St. Leonard's (where Rebus is normally based), Leith (the port of Edinburgh), Gayfield Square and West End. The officer in charge of this region is known as the chief constable. He is served, in decreasing order of rank, by a deputy chief constable (DCC), two assistant chief constables (ACCs), and various detective chief superintendents (DCSs),"