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An example of chain of custody would be the recovery of a bloody knife at a murder scene: Officer Andrew collects the knife and places it into a container, then gives it to forensics technician Bill. Forensics technician Bill takes the knife to the lab and collects fingerprints and other evidence from the knife.
This required the computer forensic investigator to have a good deal of experience and training in: Identifying which computer, applications or devices may be involved; How to disassemble a computer and extract the hard drives of the computer without causing damage. How to correctly take a forensic image to keep chain of custody
Since 2000, in response to the need for standardization, various bodies and agencies have published guidelines for digital forensics. The Scientific Working Group on Digital Evidence (SWGDE) produced a 2002 paper, Best practices for Computer Forensics, this was followed, in 2005, by the publication of an ISO standard (ISO 17025, General requirements for the competence of testing and ...
Computer forensics (also known as computer forensic science) [1] is a branch of digital forensic science pertaining to evidence found in computers and digital storage media. The goal of computer forensics is to examine digital media in a forensically sound manner with the aim of identifying, preserving, recovering, analyzing, and presenting ...
The tag identifies the specific scene the evidence came from and establishes the "chain of custody". The chain of custody refers to the order in which evidence is handled by individuals who are involved in the case's investigation. The chain of custody is pertinent to the investigation and guarantees the physical security of all evidence that ...
The analysis, conducted by Computer Forensics Services, found data, including over 120,000 emails, "consistent with normal, everyday use of a computer", found "no evidence that the user data had been modified, fabricated or tampered with", and found no new files created on the laptop after April 2019, when Mac Isaac received the laptop.
Therefore, establishing a clear chain of custody and demonstrating that the evidence presented is unchanged from its original state is crucial. To address this issue, commercial software technology solutions have been developed to preserve digital evidence in its original form and authenticate it for admissibility in court disputes.
The reduction in the handling of the original evidence lessens the likelihood of deliberate tampering or accidental contamination and reduces chain of custody requirements and overheads. While the chain of custody stops with the presentation, accountability and responsibility remain until the evidence is disposed of.