Only 245 of the cases have been given the final verdict.
Migration experts expressed deep concerns on Monday over the slow pace of human trafficking cases in Bangladesh.
"Nobody cares about the law due to its long trial process," said Shariful Islam Hasan, head of BRAC migration programme, at a discussion session titled "Human Trafficking and Irregular Migration" held at BRAC Centre in the capital’s Mohakhali.
He said a total of 4,668 cases have been filed under the Human Trafficking Prevention Act 2012.
However, only 245 of the cases have been given the final verdict and 4,015 cases are still under trial.
National Human Rights Commission’s acting chairman Md Nazrul Islam, Home Ministry’s Additional Secretary Md Abu Bakar Siddiq were present in the programme.