Mamtaz Uddin Ahmed of the High Court Division issued a verdict in favor of the petitioners asking the government to preserve historical sites.

[8] In 2012, Mamoon appeared as a prosecution witness at International Crimes Tribunal-1 which was engaged by the Bangladesh Government to try the war criminals of 1971.

In his witness's account, Mamoon said that members of the Peace Committee used to advise Pakistani military leaders about where and how to strike the freedom fighters of Bangladesh.

[11] He received criticism for endorsing anti-Islamic activities referenced in Shah Ahmad Shafi's open letter named An Open Letter from Shah Ahmad Shafi to the Government and the Public related to the Shahbag protests in 2013.

[12] Gazi MH Tamim, a lawyer of Bangladesh Supreme Court filed genocide charges against him at the International Crimes Tribunal over the police raid on 2013 Shapla Square protests of Hefazat-e-Islam Bangladesh on 20 August 2024.