Phone records were admitted without a certificate. The Supreme Court said: that's okay—if you object early.

The prosecution submitted call records without the mandatory certificate. The defence stayed silent—until appeal. The Supreme Court then asked: was the door to fix it still open?

A man was convicted of murder in Haryana. The evidence that sealed his fate was a set of phone records—Call Detail Records, or CDRs (logs showing who called whom, when, and for how long). The prosecution placed them before the trial court in Haryana. The defence did not object. The court admitted them. The accused, Sonu, was convicted. Then, on appeal, the defence turned around and said: the entire case collapses because those CDRs were admitted without a certificate under Section 65-B(4) of the Evidence Act (the legal rule that says electronic records must come with a signed certificate from the person who controls the device or system that produced them). The Supreme Court had to decide: could a procedural gap be closed after the trial, or was the conviction doomed from the start?

When the phone records arrived without a stamp

The case of Sonu v. State of Haryana began like many others. The police gathered CDRs from the telecom provider. These records placed the accused at specific locations at specific times. They connected him to co-accused. In the prosecution's telling, they were the digital thread that tied the case together.

At trial, the prosecution marked the CDRs as evidence. The courtroom fell still—the only sound was the shuffle of paper as the prosecutor laid the printouts on the judge's desk. The defence lawyer's chair scraped the floor as he remained seated. No one asked: "Where is the certificate under Section 65-B(4)?" The trial proceeded. Witnesses were examined. Arguments were made. The court convicted Sonu.

Then came the appeal. The defence raised a new argument: the CDRs were inadmissible because they lacked the mandatory certificate. Without the CDRs, the prosecution's case was weak. The conviction, the defence argued, could not stand.

The certificate that everyone forgot

Section 65-B(4) of the Indian Evidence Act is a procedural gatekeeper. It says: any electronic record—an email, a WhatsApp message, a bank statement, a phone log—can only be admitted as evidence if it is accompanied by a certificate signed by a person who controls the computer or device that produced it. That certificate must state that the device was working properly, that the record is accurate, and that no tampering occurred.

Without that certificate, the electronic record is, in theory, not admissible. But the law also recognises that sometimes the certificate is missing for reasons that can be fixed—a busy police officer, a lost file, a procedural oversight. The question is: what happens when the certificate is missing and no one notices until after the trial?

Why the defence waited

The Supreme Court observed a pattern. The defence had stayed silent when the CDRs were marked. They did not object. They did not say: "My Lord, these records lack the certificate." They let the evidence come in. They cross-examined witnesses based on those records. They built their case around them. Only after losing did they argue that the records should never have been admitted.

The Court saw this as a strategic choice, not a genuine procedural concern. If the defence had objected at trial, the prosecution could have fixed the problem. The trial court could have said: "Bring the certificate tomorrow." The telecom company could have issued one. The gap could have been closed in hours.

But by waiting until appeal, the defence was asking the appellate court to do something different: to throw out the evidence entirely, without giving the prosecution a chance to cure the defect.

The crucial test: curable or fatal?

The Supreme Court laid down a clear test. The question was not whether the certificate was missing. The question was: "whether the defect could have been cured at the stage of marking the document."

If the answer was yes—if the prosecution could have obtained the certificate if the objection had been raised at trial—then the defect was curable. The evidence was not inherently inadmissible. It was simply admitted without the proper procedural formality.

The Court distinguished between two kinds of defects. A defect that goes to the "mode or method of proof" is procedural. It can be fixed. A defect that makes the evidence "inherently inadmissible" is fundamental. It cannot be fixed.

Missing a Section 65-B(4) certificate, the Court held, falls into the first category. It is a procedural gap, not a fatal flaw. The evidence itself—the phone records—was not forged or unreliable. The certificate was simply missing. And the certificate could have been obtained if the objection had been raised at the right time.

What the Court said about timing

The Supreme Court observed: if the objection had been raised when the CDRs were marked, the court "could have given the prosecution an opportunity to rectify the deficiency." The prosecution had a clear pathway during trial to cure the defect—provided the objection was raised early.

This is the key takeaway: the door to fix the problem is open during trial. It closes after the verdict. If you wait until appeal, you cannot complain that the door was locked.

The Court did not say that the certificate is optional. It did not say that courts should admit electronic records without the certificate. It said that the absence of the certificate is a defect that can be cured—and the defence must give the prosecution the chance to cure it by objecting at the right time.

THE PLAY: If you are defending a case involving electronic evidence, object to the missing certificate at trial—not on appeal—or the court will treat the defect as cured by your silence.

The cost of silence: a lesson in trial strategy

The defence lawyer in Sonu v. State of Haryana made a calculated choice. The prosecution placed the CDRs on the evidence list. The judge's pen hovered over the list, waiting for objections. The defence lawyer sat still. The pen moved. The CDRs were marked. The trial moved on.

That moment of silence cost the defence its best argument. On appeal, the Supreme Court noted that the objection related only to the "mode or method of proof"—a procedural issue that could have been fixed on the spot. The Court held that non-production of the certificate is a defect that can be subsequently cured, provided the objection is raised at the right time.

The ruling reinforces a fundamental principle of trial practice: you cannot lie in wait, let evidence come in, and then spring a procedural trap on appeal. The courtroom is not a game of gotcha. It is a forum for truth-seeking, and procedural objections must be raised when they can still be remedied.

What this means for every trial lawyer

For prosecutors, the message is clear: you must still obtain the Section 65-B(4) certificate. The Court did not relax the requirement. It simply said that if you miss it, the trial court can give you a chance to fix it—but only if the defence objects.

For defence lawyers, the message is equally clear: do not wait. If the prosecution marks an electronic record without the certificate, object immediately. Make it part of the record. Force the prosecution to produce the certificate. If you stay silent, you lose the right to complain later.

For trial judges, the Court's ruling provides a practical tool. When an electronic record is marked without the certificate, and the defence objects, the judge can simply say: "Produce the certificate within a reasonable time." The trial does not stop. The evidence is not thrown out. The defect is cured.

The Supreme Court ended where it began: with phone records and a missing certificate. The door to fix it was open at trial. The defence chose not to knock.