What is considered a best practice when collecting digital evidence?

Preserving original data before analysis is a fundamental best practice in the field of digital forensics. This principle is crucial to maintaining the integrity of the evidence. By preserving the original data, forensic investigators ensure that no alterations or tampering occur during the analysis process, which is vital for maintaining the chain of custody. In legal contexts, the authenticity of the evidence can be called into question if there is any indication that the original data has been modified.

Additionally, this practice allows for the possibility of re-examining the original evidence if necessary, in case questions arise about the findings or methods used during the initial analysis. Overall, this principle helps to uphold the standards of accuracy and reliability that are essential in forensic investigations.