Security Enhancement of Forensic Evidences Using Blockchain

Jerrin John, Sindhu Daniel

Abstract: The integrity, authenticity, and confidentiality of forensic evidence are critical factors in modern criminal investigations and judicial proceedings. Traditional evidence management systems often rely on centralized storage and manual handling processes, which are vulnerable to tampering, unauthorized access, data loss, and chain-of-custody violations. These limitations can compromise the reliability of evidence and weaken legal outcomes. To address these challenges, this study proposes a blockchain-based framework for enhancing the security of forensic evidence management systems. Blockchain technology, a decentralized and immutable distributed ledger, offers a robust solution for ensuring transparency and trust in evidence handling. In the proposed system, forensic evidence is digitally recorded and its cryptographic hash is stored on the blockchain, ensuring that any alteration in the original data can be easily detected. Each transaction related to the evidence such as collection, transfer, analysis, and storage is logged as a time-stamped block, creating a tamper-proof and verifiable chain of custody. Smart contracts are integrated into the system to automate access control, ensuring that only authorized personnel can interact with the evidence under predefined conditions. Additionally, encryption techniques are employed to protect sensitive information, while decentralized storage solutions are used to securely store large forensic files off-chain, maintaining efficiency and scalability. The system also enables real-time tracking and auditing of evidence, thereby enhancing accountability among law enforcement agencies and forensic experts. This approach significantly reduces the risks associated with evidence manipulation, data breaches, and human errors. By providing a transparent, secure, and auditable platform, blockchain technology strengthens the credibility of forensic evidence in legal proceedings. The proposed model demonstrates improved reliability, enhanced data integrity, and increased trust among stakeholders, including investigators, legal authorities, and judicial systems. Overall, the integration of blockchain in forensic evidence management presents a transformative solution to modern digital forensics challenges, paving the way for more secure and efficient criminal justice processes.

Keywords: Blockchain Technology, Digital Forensics, Forensic Evidence Management, Chain of Custody, Data Integrity, Evidence Authentication, Cryptographic Hashing, Smart Contracts, Decentralized Storage, Tamper-Proof Systems, Cybersecurity, Distributed Ledger, Secure Data Sharing, Access Control, Evidence Tracking, Immutable Records, Audit Trail, Data Privacy

How to Cite?: Jerrin John, Sindhu Daniel, "Security Enhancement of Forensic Evidences Using Blockchain", Volume 15 Issue 4, April 2026, International Journal of Science and Research (IJSR), Pages: 1209-1213, https://www.ijsr.net/getabstract.php?paperid=SR26420102105, DOI: https://dx.dx.doi.org/10.21275/SR26420102105

Download Citation: APA | MLA | BibTeX | EndNote | RefMan