The Government of Brunei Darussalam is the union government created by the constitution of Brunei where by the Sultan of Brunei is both head of state and head of government (Prime Minister of Brunei). Executive power is exercised by the government. Brunei has a legislative council with 36 appointed members, that only has consultative tasks. Under Brunei's 1959 constitution, His Majesty Hassanal Bolkiah, is the head of state with full executive authority, including emergency powers since 1962. The Sultan's role is enshrined in the national philosophy known as "Melayu Islam Beraja" (MIB), or Malay Islamic Monarchy. The country has been under hypothetical martial law since a rebellion occurred in the early 1960s and was put down by British troops from Singapore. The Seat of the Government is located in Bandar Seri Begawan, Brunei.