A recorded conversation was key evidence. Then the original was deleted.

The CBI had a recorded conversation. They transferred it to cassettes, then deleted the original. The problem? The copy used for the transcript was never sealed.

In a Delhi courtroom, the whir of a cassette player was the only sound as an investigating officer sat in the witness box. He had prepared a transcript of a crucial conversation. But under questioning, he admitted something devastating: he had never heard the original recording. He had worked from a copy. His finger traced the edge of the transcript as he conceded that copy was not sealed. The original was gone — deleted after being transferred to audio cassettes. The judge's glasses reflected the sealed cassette exhibit, a silent question hanging over the room: can a copy of a deleted file be trusted as evidence?

When the digital recorder held the truth

The case, Girwar Singh v. CBI, began with a criminal investigation. During the probe, the Central Bureau of Investigation (CBI) recorded a conversation on a Samsung Digital Recorder. That recording was central to the prosecution's case — it was supposed to prove something the accused had said or done.

But the CBI did not keep the original file. Instead, the investigating officer, Inspector Amrik Raj, transferred the conversation onto two audio cassettes. One cassette was sealed and marked "A." The other was kept unsealed — this was the "investigation copy," meant for officers to listen to and work from. After the transfer, the original recording on the digital recorder was deleted.

The prosecution then prepared two things: a written transcript of the conversation (marked as Exhibit PW-3/G) and a sound analysis report from the Central Forensic Science Laboratory (CFSL). Both were based on the sealed cassette — or so the prosecution claimed.

"I never heard the original"

When Inspector Amrik Raj took the stand as a prosecution witness (PW-13), his testimony began to reveal cracks. The courtroom fell silent as he admitted that he had personally prepared the transcript — but he had done so by listening to the investigation copy of the cassette, not the sealed one. That investigation copy, he confirmed, was never in a sealed condition during the time he worked with it. The smell of old paper from the case file seemed to fill the room as the weight of the admission settled.

Then came the crucial admission: "I have not heard the original recording from the digital recorder." He could not say, from his own knowledge, whether the investigation copy matched the original. He also could not remember whether he had compared the investigation copy with the sealed cassette before preparing the transcript. The officer's voice was low, his finger tracing the transcript's edge as he spoke.

Worse, the investigation copy itself was never filed in court along with the charge-sheet. The only cassette that was sealed and sent for forensic analysis was the one marked "A." But the transcript — the document the prosecution wanted the court to rely on — was prepared from an unsealed copy that had no clear link to the original recording.

What the law says about copies of evidence

The court had to apply a basic rule of evidence law: secondary evidence (a copy of a document or recording) is only admissible if the person who made the copy actually saw or heard the original. This is not a technicality — it is a safeguard. If a copy can be admitted without someone verifying it against the original, then the door opens to tampering, editing, or honest mistakes.

In this case, the person who made the transcript had never heard the original. The original was deleted. The copy he used was unsealed. And no one could confirm that the sealed cassette — the one sent to the forensic lab — was an exact copy of what was on the digital recorder.

The prosecution argued that the sealed cassette was sufficient. The CFSL report, they said, was based on that sealed cassette, and the seals were intact. But the court saw a deeper problem: the seals were irrelevant because what was sealed was a copy, not the original. A perfect seal on a copy does not prove that the copy matches the original — it only proves that no one tampered with the copy after it was sealed. The judge's glasses reflected the sealed cassette exhibit, a silent testament to the flaw in the logic.

Why the chain of custody broke

Another officer, Inspector Umesh Vashishth (PW-14), explained the procedure: the conversation was transferred from the digital recorder to two cassettes, one sealed and one unsealed, and then the original was deleted. But this explanation only highlighted the gaps. The original was destroyed before anyone could verify that the copies were accurate. The investigation copy — the one used for the transcript — was never sealed and never filed. And the officer who prepared the transcript had no firsthand knowledge of the original.

The court noted these procedural lapses one by one: the transcript was prepared from an unsealed copy, the original recording was deleted, the investigating officer never compared the copies to the original, and the chain of custody was broken at multiple points. The silence in the courtroom was thick as each failure was laid bare.

The verdict: inadmissible and unreliable

The court ruled that the transcript (Exhibit PW-3/G) was inadmissible as evidence. It could not be looked at or relied upon. The CFSL sound analysis report was also deemed unreliable, because it was based on a copy whose connection to the original could not be verified.

The court's reasoning was straightforward: secondary evidence is only as good as the chain that connects it to the original. When that chain is broken — when the original is deleted, when copies are unsealed, when the person making the transcript never heard the original — the evidence cannot be trusted.

This judgment underlines the extreme importance of effective cross-examination, which demonstrated the fatal flaws in the acquisition and custody procedures, compelling the court to examine whether the prosecution could establish guilt dehors (without) the voice recordings.

THE PLAY: When relying on electronic evidence, preserve the original file and ensure every copy is verified against it before the original is deleted — or the entire case may rest on a transcript that no one can vouch for.

The original recording was deleted. The copy was unsealed. The transcript was prepared by a man who had never heard the truth. In the silent courtroom, the cassette player stood idle, its whir a memory of what could have been proven — and what was lost.