ii.
Accuracy
Accurate digital forensic investigations require meticulous adherence to legally sound chain of custody
protocols, ensuring consistency and integrity of evidence from pre-seizure to post-seizure. This
involves thorough documentation of evidence gathering, preservation, and storage procedures,
following scientific principles for analysis. Challenges arise in maintaining accuracy throughout the
process, often leading to inadmissible evidence in court. To mitigate this, meticulous record-keeping
of all activities is essential, including names, dates, times, questions, findings, and assumptions.
Preservation methods differ between crime scenes and forensic labs, necessitating distinct approaches.
Despite the seemingly invincible nature of digital evidence, examiners must employ legal techniques
and tools for discovery. However, ensuring authenticity and accuracy can be compromised due to
uncertainties such as system shutdowns during live analysis or tampering during transit in dead
analysis.
iii.
Completeness
The digital evidence gathering process necessitates a consistent chain of custody to ensure authenticity
and accuracy. Legal requirements demand thorough documentation of exhibit numbers throughout,
including investigation procedures, tools, and hypotheses. Peer review by expert witnesses is essential
to validate the legality of findings without dispute. Investigators must explain the process used to
identify and preserve evidence at crime scenes and labs.
iv.
Convincing
To ensure digital evidence is convincing to the judges, it must meet high standards of acceptability,
avoiding interference or doubt. Diligent digital forensic investigation ensures authenticity, accuracy,
and completeness of evidence, meeting legal requirements. Evidence should be presented in a nontechnical manner, considering diverse backgrounds of the judges and decision makers. Digital
evidence clarifies digital events and the development of hypotheses, tested using scientific methods.
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