Evidence given by Rokunzaman

My name is Rokunzaman, Father- Mohammad Ali, Mother- Helena Begum, age- 43 years, address Village- Namai Karager Char, Post Office- Mathkhola, Police Station Pakundia, District- Kishoreganj.

Currently, I am working as a Police Inspector in the Digital Forensic Lab of CID Dhaka. On 15/09/2025 AD, I received one DVDR and one Hard Drive as evidence from the Special Investigating Officer of this case. The DVDR contains a disputed audio file, and the Hard Drive contains a sample file. I provided an opinion after examining and analyzing the said evidence. At the same time, I also supplied the transcript. The voice of a female contained in the DVDR matches the sample voice stored in the Hard Drive, which is the voice of former Prime Minister Sheikh Hasina. This is that copy of the opinion (Exhibit 19). These are my signatures on that copy (Exhibit 19/1 Series). The original report is with me.

This is my deposition.

[Amir Hossain asked for time to gather knowledge, crucial evidence. Prosecutor Mizanur Rahman: But he should also have had a problem examining P.W. 42 if he did not have knowledge. Judge said he did not understand why. Amir Hossain said it was essential. Prosecutor Mizanur Rahman asked the judge to please “let him do it (now), let us see later (if he has issues), he can examine the Investigating Officer about the technicalities.]”

Cross-examination

I do not know whether there is a match between one person’s voice and another’s voice. I do not know whether people can mimic another person’s voice.

It is not true that the statement that the voice of a female contained in the DVDR matches the sample voice stored in the Hard Drive, which is the sample voice of former Prime Minister Sheikh Hasina, is false.

It is not true that this is not Sheikh Hasina’s voice.

It is not true that the statement that a male voice contained in the DVDR matches the voice of Taposh in the HDD stored sample is false.

It is not true that this is not the voice of Fazle Noor Taposh.

It is not true that I gave a false signature due to political and administrative influence.

Re-examination:

Exhibit 19 and Exhibit 20 are the same document’s testimony.

On 19/03/2025, I received a pen drive as evidence. The pen drive contains two videos. One is a video file containing a disputed conversation. The report states that the disputed voice matches the voice of DMPC Habibur Rahman. This is the copy of the report (Exhibit 21) and this is my signature on the report (Exhibit 21/1 Series). The original report is with me.This is my deposition

This is my deposition.

Re-Cross-examination

It is not true that I submitted the report under political influence. It is not true that DMPC Habibur Rahman is not mentioned in my report.

It is not true that I gave instructed testimony.

It is not true that I gave false testimony.