Bangladesh is a parliamentary democracy.[26] Direct elections involving all citizens over the age 18 are held every five years for the unicameral parliament known as Jatiya Sangsad. The parliament building is known as the Jatiyo Sangshad Bhaban designed by architect Louis Kahn and currently has 345 members including 45 reserved seats for women, elected from single-member constituencies. The Prime Minister, as the head of government, forms the cabinet and runs the day-to-day affairs of state. While the Prime Minister is formally appointed by the President, he or she must be an MP who commands the confidence of the majority of parliament. The President is the head of state, a largely ceremonial post elected by the parliament.[27]
However the President's powers are substantially expanded during the tenure of a caretaker government, which is responsible for the conduct of elections and transfer of power. The officers of the caretaker government must be non-partisan and are given three months to complete their task. This transitional arrangement is an innovation that was pioneered by Bangladesh in its 1991 election and then institutionalised in 1996 through its 13th constitutional amendment.[28]
The Constitution of Bangladesh was drafted in 1972 and has undergone fourteen amendments.[28] The highest judicial body is the Supreme Court. Justices are appointed by the President. The judicial and law enforcement institutions are weak.[29] Separation of powers, judicial from executive was finally implemented on the 1st of November, 2007. It is expected that this separation will make the judiciary stronger and impartial. Laws are loosely based on English common law, but family laws such as marriage and inheritance are based on religious scripts, and therefore differ between religious communities.
The two major parties in Bangladesh are the Bangladesh Awami League and the Bangladesh Nationalist Party (BNP). BNP is led by Khaleda Zia and finds its allies among Islamist parties like Jamaat-e-Islami Bangladesh and Islami Oikya Jot, while Sheikh Hasina's Awami League aligns with leftist and secularist parties. Hasina and Zia are bitter rivals who have dominated politics for 15 years; both are women and each is related to one of the leaders of the independence movement. Another important player is the Jatiya Party, headed by former military ruler Ershad. The Awami League-BNP rivalry has been bitter and punctuated by protests, violence and murder. Student politics is particularly strong in Bangladesh, a legacy from the liberation movement era. Almost all parties have highly active student wings, and students have been elected to the Parliament.
Two radical Islamist parties, Jagrata Muslim Janata Bangladesh (JMJB) and Jama'atul Mujahideen Bangladesh (JMB), were banned in February 2005. Bomb attacks taking place since 1999 have been blamed on those groups, and hundreds of suspected members have been detained in numerous security operations, including the head of those two parties in 2006. The first recorded case of a suicide bomb attack in Bangladesh took place in November 2005.
The January 22, 2007 election was postponed indefinitely and emergency law declared in January 11, 2007 as Army backed caretaker government of Fakhruddin Ahmed aims to prepare a new voter list and crack down on corruption. The government aims to hold new elections by 2008 but a lack of coordination between the Election Commission and the Government and Political Parties threatens to undermine this deadline. Recent activities of Government have created uncertainty about Election while Khaleda Zia and Sheikh Hasina, two leader of major Political parties BNP and Awami League who ruled the country for the last 15 years, were detained and are facing criminal charges in court and the banned indoor politics is yet to be exercised.
Meanwhile the Bangladesh Military has expressed their interest in controlling the country with statements like "own brand of Democracy" and making changes in the constitution to allow military participation in politics.[30] They are also assisting the interim Government of Bangladesh in a drive against corruption which seems to be mostly targeted against the politicians and opponents. The military has also imposed censorship of the national media and closing down/hampering private TV stations.[31] Illegal detentions and torture to extract confessions have also become rampant.[32]
Grand alliance leaded by Awami League won the December 29, 2008 poll. Bangladesh Awami League won a landslide victory. They got 230 seats among 300 seats in the parliament.[33]