Patiala, June 9 – In a breakthrough that could reshape forensic document examination, researchers at Punjabi University’s Department of Forensic Sciences have developed a scientific method to distinguish between gel pen inks and determine the age of handwritten documents.
The research was led by Vinayak Gupta under the supervision of Professor Komal Saini and centers on identifying the unique chemical signatures of different gel inks using advanced analytical tools.
“This method can play a pivotal role in verifying the authenticity of documents such as wills, contracts, agreements, and letters, which are often central to legal disputes,” Prof Saini said. She added that the technique aids in pinpointing the time of ink application, helping investigative and judicial agencies to detect fraud, alterations, or forgeries.
To carry out the analysis, researchers used Gas Chromatography-Mass Spectrometry (GC-MS) — a powerful forensic technique for breaking down complex substances into identifiable components. The chemical profiles obtained were then subjected to rigorous statistical testing to ensure the method’s reliability and validity.
“The results emerged from large-scale statistical analyses, proving the effectiveness of this approach in real-world forensic investigations,” said Gupta. “This is particularly valuable when dealing with cases where authenticity of handwriting is legally disputed.”
The study’s findings have been published in international forensic science journals and have drawn praise from experts in both scientific and legal circles.
“Forensic document examiners frequently encounter cases involving tampering, forgery, or date manipulation,” Gupta explained. “Our research adds a reliable tool to their arsenal and strengthens the evidentiary value of handwritten materials in both criminal and civil courts.”
Punjabi University Vice Chancellor Dr Jagdeep Singh lauded the achievement, calling it a proud moment for the institution and its forensic sciences department.
“This kind of applied research enhances the standing of the university and has far-reaching implications across the justice system,” he said. “Its utility spans criminal investigations, civil litigation, and document authentication—helping ensure truth prevails where it matters most.”
