Why is it important to create a bit-by-bit copy of digital evidence?

Creating a bit-by-bit copy of digital evidence is crucial because it ensures that the original evidence remains unaltered throughout the forensic examination process. This process is fundamental in forensic investigations, as any modification or alteration to the original data could compromise the integrity of the evidence, making it inadmissible in court. A bit-by-bit copy, also known as a forensic image, captures every single bit of data, including hidden files and deleted items, allowing investigators to analyze the complete data set without interacting with the original evidence. This practice maintains a clear chain of custody and preserves the reliability of the evidence for legal purposes.

While other options might appear relevant, they do not align with the primary objective of forensic imaging, which focuses on preserving the authenticity and integrity of the original data.