The members of civil society in Narayanganj hvae given their deposition over the seven murder in the district on Sunday.
The high-powered investigation committee started recording the deposition around 4pm and concluded it at 6:10pm.
A total of 61 persons registered for giving deposition. Of them, 54 have been testified.
Earlier, the probe body arranged three mass hearings on May 12, 15 and 17.
On May 5, the High Court ordered an administrative investigation into the killing of Narayanganj Ward Counsillor Nazrul Islam, lawyer Chandan Sarkar and five of their associates.
Narayanganj City Corporation panel mayor Nazrul Islam and lawyer Chandan Sarkar along with five others were killed and their bodies were dumped into River Shitalakkhya after they were abducted on April 27.
Later, their bodies surfaced in the Shitalakhya River on April 30.
