International Science Community Association Research Journal of Forensic Sciences 14 2 2026 07 29 Development of latent Fingerprint technique: incorporating Biopolymer developed from Banana sheath fibre and utilizing it in Fuming method 13 17 EN Karthik G.I. Vaishnav 1 Department of Criminology & Forensic Science, Nehru Arts and Science College, Coimbatore, India K. Dinsha 2 Department of Forensic Science, M E S Kalladi College, Mannarkadu, Palakkad, Kerala, India R. Dhanya 3 Department of Criminology & Forensic Science, Nehru Arts and Science College, Coimbatore, India Kulkani Sudhanva G. 4 Department of Criminology & Forensic Science, Nehru Arts and Science College, Coimbatore, India S.S. Nidhin 5 Department of Criminology & Forensic Science, Nehru Arts and Science College, Coimbatore, India Bose Surajit 1 Department of Oral Maxillofacial Pathology Microbiology; Forensic Odontology, Kusum Devi Sunderlal Dugar Jain Dental College & Hospital, Ram Gopal Ghosh Road, Cossipore, Kolkata, West Bengal, India Shetty Rakshith 2 Department of Oral Maxillofacial Pathology Microbiology; Forensic Odontology, Kusum Devi Sunderlal Dugar Jain Dental College & Hospital, Ram Gopal Ghosh Road, Cossipore, Kolkata, West Bengal, India Bhattachrya Maumita 3 Department of Oral Maxillofacial Pathology Microbiology; Forensic Odontology, Kusum Devi Sunderlal Dugar Jain Dental College & Hospital, Ram Gopal Ghosh Road, Cossipore, Kolkata, West Bengal, India Sen Subhalakshmi 4 Department of Oral Maxillofacial Pathology Microbiology; Forensic Odontology, Kusum Devi Sunderlal Dugar Jain Dental College & Hospital, Ram Gopal Ghosh Road, Cossipore, Kolkata, West Bengal, India Chattopadhyay Jayanta 5 Department of Oral Maxillofacial Pathology Microbiology; Forensic Odontology, Kusum Devi Sunderlal Dugar Jain Dental College & Hospital, Ram Gopal Ghosh Road, Cossipore, Kolkata, West Bengal, India Ghosh Bitan 6 Department of Oral Maxillofacial Pathology Microbiology; Forensic Odontology, Kusum Devi Sunderlal Dugar Jain Dental College & Hospital, Ram Gopal Ghosh Road, Cossipore, Kolkata, West Bengal, India Rahangdale Labhini 1 Schiio of Biosciences and Bioengineering, Division of Forensic Science, DY Patil International University, Akurdi, Pune, Maharashtra-411044, India Dharmalingam Lokashree 2 Division of Forensic Science, Karunya Institute of Technology and Sciences, Coimbatore, Tamil Nadu-641114, India > Research Paper 2025 12 22 2026 07 29 The objective of this study was to create a new method as an alternative to the cyanoacrylate fuming technique and other chemical processes typically employed in forensic science for latent fingerprint enhancement. By harnessing the potential of extracted biopolymers, we aim to move away from the use of carcinogenic chemicals in the development of latent impressions. Our goal is to explore a more natural approach to latent impression enhancement. A fume hood was used to heat a beaker containing cellulose content. Coconut oil, a natural ester, was added and heated until fumes were produced. A non-porous surface, such as a glass slide with a fingerprint, was placed inside the fuming chamber. After 5 minutes, the fumes reacted with the fingerprint, resulting in a white deposition over it. This study focuses on the natural approach of extracting biopolymer from banana sheath fibre. The decision to focus on banana sheath fibre was made due to the significant cellulose content present in it, making it a promising source for biopolymer extraction. This research deliberately selected a bio-ester that aligns with the project's natural ethos. The chosen bio-ester is coconut oil, a widely recognized natural ester that is rich in fatty acids and triglycerides, demonstrating potential for effective biopolymer formation. In the course of experiments, fuming method was used for development of latent impression over glass surface, a distinct white deposition was observed on the glass surface where the fingerprint had been placed. Copyright@ International Science Community Association