Politics of Bangladesh takes place in a framework of a parliamentary representative democratic republic, whereby the Prime Minister of Bangladesh is the head of government, and of a multi-party system. Executive power is exercised by the government. Legislative power is vested in both the government and parliament. The Constitution of Bangladesh was written in 1972 and has undergone seventeen amendments.[1]
The current parliamentary system was adopted in 1991. Between 1975 and 1990 the nation experienced military rule. A caretaker government was first introduced in 1990 after the resignation of military dictator Lieutenant General HM Ershad to observe a neutral democratic election, as per demands of the two major political parties Bangladesh Nationalist Party (BNP) and Bangladesh Awami League. Following the forced resignation of HM Ershad, Chief Justice Shahabuddin Ahmed was nominated as the Chief Advisor and observed the 1991 general election. A Caretaker government is headed by a Chief Adviser who enjoys the same power as the regular prime minister of the country except defense matters