Police may also torture for personal gratification as is the case with rape. However, the majority of cases involve torturing people to confess to a crime they didn't commit. All of this continues because successive governments allow it to. It is rare that cases are investigated and even fewer are brought to justice. Bangladesh ratified the Convention Against Torture in 1998.
Torture is forbidden under the Constitution and it is a criminal act under the Penal Code.
However legislation which facilitates torture, for example by allowing for detention without an arrest warrant, is still in place. Amnesty International's report makes several recommendations to the Government of Bangladesh.