 The Detective Kubu series, by Michael Stanley (South African co-writers Michael Sears and Stanley Trollip), features Assistant Superintendent David 'Kubu' Bengu of the Botswana Police Service Criminal Investigation Department.Gaborone is the center of the national economy.The headquarters of important financial institutions such as the Bank of Botswana, Bank Gaborone, BancABC, and the Botswana Stock Exchange are centrally located, as well as the headquarters for Air Botswana, Consumer Watchdog, Botswana Telecommunications Corporation, and Debswana, the joint diamond mining venture between De Beers and the Botswana government.