Legal Requirements for Requesting Handwriting Expert Verification of Disputed Signatures in Cheque Bounce Cases

In the landscape of commercial litigation, few disputes are as common or as contentious as those arising under Section 138 of the Negotiable Instruments Act, 1881 (NI Act). While the law is designed to ensure the credibility of negotiable instruments, defendants frequently find themselves in a position where they must contest the authenticity of the document. A pivotal point of contention often emerges when an accused claims that the signature on a dishonoured cheque is a forgery or was obtained through misuse. This leads to the critical legal question: Can cheque signatures be sent for handwriting expert check?

The answer is generally yes, but this is not an automatic right. The court must balance the statutory presumptions favoring the holder of the cheque against the accused's fundamental right to a fair trial.

The Legal Framework: Presumptions vs. Proof

To understand when an expert is summoned, one must first understand the presumptions created by the NI Act. Under Section 118 NI Act, there is a legal presumption that a cheque is issued for consideration, and by extension, signatures are deemed genuine until the contrary is proved. This is reinforced by Section 139 NI Act, which presumes the existence of a legally enforceable debt or liability.

However, these presumptions are rebuttable. This means the accused can provide evidence to prove the signature is not theirs. To facilitate this, the legal system provides several mechanisms:

• Section 73 of the Evidence Act: This provision empowers courts to compare a disputed signature with one admitted or proved to be genuine. While courts may use their own eyes for this comparison, they often refer the matter to handwriting experts for a more reliable technical analysis 2025 Supreme(Online)(Ori) 350.
• CrPC Sections 91, 243, and 311: These sections provide the procedural power for a court to summon documents, witnesses, or experts to ensure that justice is not miscarried.

When Courts Typically Grant Expert Examination

Courts are generally inclined to permit the involvement of a handwriting expert if the request is made strategically and honestly.

1. Early and Express Challenges to Genuineness

If a defendant raises a claim of forgery at the earliest possible stage of the proceedings, courts are more likely to view the request as a legitimate pursuit of justice rather than a delay tactic. For instance, if the accused claims the cheque was misused or forged, the trial court may send the document to a Forensic Science Lab (FSL).

The Rajasthan HC has emphasized that allowing expert verification is essential for a fair trial, in one instance setting aside a trial court's order that had previously denied such a request 2025 0 Supreme(Raj) 1763. Similarly, the necessity of government expert examination is often upheld to counter allegations of signature forgery and establish authenticity 2023 0 Supreme(P&H) 2400.

2. Overcoming the Time Gap Hurdle

A common objection raised by the prosecution is that the admitted signature sample is too old to be compared with the disputed cheque. However, judicial precedent suggests that a significant time gap does not automatically bar an expert's opinion. The Telangana HC upheld the discretion to allow comparison, noting that the time gap is irrelevant as long as a viable comparison is possible 2025 Supreme(Online)(Tel) 70423.

When Expert Requests are Likely to be Rejected

Not every application for expert testimony is granted. Courts remain vigilant against the misuse of forensic requests to prolong litigation.

1. Prior Admission of the Signature

If the accused has already admitted to signing the cheque—whether in a reply notice to a legal demand or during cross-examination—the court will typically reject a subsequent request for an expert. In such cases, the focus shifts from the authenticity of the signature to the existence of the debt. The Kerala HC has noted that if a signature is admitted, the accused must simply prove that the signed cheque was not issued in discharge of a debt, rendering an expert unnecessary 2023 0 Supreme(P&H) 1934.

2. Belated Applications and Delay Tactics

Requests for expert opinion made after the evidence stage has closed or during final arguments are frequently rejected. The Supreme Court has observed that under CrPC Section 391, additional evidence is only permissible if due diligence is shown. In one case, the SC affirmed a Gujarat HC decision rejecting a late application, noting that the accused could have summoned bank officials and specimen signatures much earlier in the trial 2024 2 Supreme 150.

3. Material Alterations vs. Handwriting

It is important to distinguish between a forged signature and a material alteration of the cheque. According to some judicial views, if the drawer has signed the cheque, the fact that the date or the amount was filled in with different ink is not necessarily a material alteration that voids the instrument 2008 0 Supreme(Del) 314. In such scenarios, a court may decline to refer the cheque to a handwriting expert because the signature itself is not in dispute 2008 0 Supreme(Del) 314.

Procedural Steps for Seeking Expert Comparison

For a party wishing to challenge a signature, the following procedural path is typically followed:

1. Application Filing: Submit a formal application under CrPC 243/311 or Section 73 of the Evidence Act during the evidence stage.
2. Provision of Samples: Provide admitted signatures (e.g., signatures from bank account opening forms or registered deeds) to serve as a baseline for the expert.
3. Timely Action: Ensure the challenge is raised before the closure of evidence to avoid the delay tactic label.
4. Legal Recourse: If the trial court denies the request, a revision petition under CrPC 397 may be filed if the denial significantly prejudices the right to a fair trial 2025 0 Supreme(Raj) 1772.

Key Takeaways for Defendants and Plaintiffs

The ability to bring in a handwriting expert is a powerful tool for the defense, but its utility depends on timing and consistency.

• Timing is Everything: Early challenges to signatures are generally viewed favorably, whereas late requests are seen as attempts to stall the trial

  Jaipal Singh Rana VS Swaraj Pal Singh

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• Consistency is Key: Any admission of the signature in written correspondence can waive the right to an expert check 2023 0 Supreme(P&H) 1934.
• Presumption remains Strong: While an expert can help rebut the Section 118 presumption, the burden of proof remains on the accused to show the signature is not theirs.

In summary, while courts prioritize the efficiency of the NI Act, the principle of a fair trial remains paramount. If a signature is genuinely disputed and the request is made timely, the court may indeed summon the parties for handwriting comparison to ensure that a forgery does not result in an unjust conviction. This analysis is based on reported judgments and generally describes legal trends; however, specific outcomes always depend on the unique facts of each case.