Abstract
Crime is on the rise in today's world and with the emergence of the digital world, a whole new aspect to crime is open. With the rise in crime, a number of investigations at various fronts is necessary to bring the culprits to justice. Digital forensic investigation is one such branch of these investigations that has been increasingly popular and mandatory for providing justice. One of the problems that hinders the efficient execution of the investigation is the possible tampering of evidence. In digital forensics, it is digital evidence. Tampering of such evidence can lead to wrong judgments and erroneous accusations and can lead the investigation to be inaccurate. It is a serious offence and the culprit needs to be identified before being dealt with.The current system in place is able to identify the team or the agency responsible for the discrepancy but recognizing the individual that is the true culprit is almost impossible. The solution we propose is to integrate Blockchain to record and store the changes during an ongoing investigation. The chain of custody can be determined easily if only authorized people are allowed to access and the records of the access are being stored. This helps in maintaining the integrity of the digital evidence that is vital to an investigation. The creator creates the blockchain after collecting the necessary evidence. The investigators of the case are allowed to access this evidence for further analysis after providing their ID for recording who is accessing the evidence.Only the creator will be allowed to delete the evidence. The integrity of the evidence is preserved because Blockchain is immutable.This solution aims to help aid investigations to move on the right track with the accurate evidence required to prove the accused guilty or not guilty. It helps to supervise and observe that none of the investigators are indulging in any malpractices.
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