Hummam Quader Chowdhury, son of executed war crimes convict Salauddin Quader Chowdhury, testified before a three-member panel of the International Crimes Tribunal on Monday. He described being abducted by plainclothes men on August 4, 2016, and held in a secret room where he noticed a table marked with the letters 'CTIB'. His testimony came as the first witness in a crimes against humanity case against deposed Prime Minister Sheikh Hasina and 12 former and current army officers, concerning alleged abductions and torture under the Awami League government.

In his detailed statement, Hummam recounted being taken from Bangshal police station to the Detective Branch office on Minto Road, then blindfolded and transferred through multiple locations before being confined for seven months. He described interrogation, physical abuse, and the conditions of his detention, including the discovery of the 'CTIB' marking. The report notes that CTIB, or Counter Terrorism and Intelligence Bureau, is a secret intelligence unit under the Directorate General of Forces Intelligence (DGFI).

The tribunal proceedings mark a rare public account of alleged enforced disappearance and secret detention practices during the period referenced in the testimony.