Abstract
Evidence gathering is at the core of every analysis process. The ability to verify the results and have appropriate paperwork, especially if a case lasts for several years, is vital. In later periods, information gathered at the outset of a prosecution may become crucial. If the documentation is handled by a system, the judicial authority can find the important facts in the appropriate time quicker. This system provides knowledge about electronic evidence collecting, processing, transportation and handling. Maintaining documents based on paper may be a tedious job that is exposed to human interference by mistakes and modifications. Security issues emerge from stored electronic records in a centralized consolidated archive. Any evidence obtained five or six years ago is very difficult to preserve in a paper-based evidence storage system. We propose a secure evidence management system to store evidence in a secure, distributed peer-to-peer (p2p) file storage network(IPFS) using blockchain technology. The system is designed with a custom transaction family on Hyperledger Sawtooth to document every transaction from the moment the evidence is collected, ensuring that only approved individuals can access or possess evidence. Our proposed framework provides a safe compromise between different stakeholders such as law enforcement agencies, attorneys, and forensic professionals that protects the integrity and permissibility of evidence.