When it comes to computers and litigation, there is the possibility for many assumptions to be made, and many of these assumptions may be incorrect.  Entire arguments founded on digital evidence can be disqualified if they are not carefully prepared by someone who really understands the possible meanings of digital evidence obtained.  Additionally there are many issues surrounding the identification, discovery, preservation and presentation of digital evidence which may disqualify its credibility.

Meta data, or data about data, has long been viewed as a pursuasive component of digital evidence.  However, in evaluating the quality of arguments based on meta data, knowledge about legitimate activities that might have produced that meta data is critical.  Some evidence may seem sinister, yet may have innocent origins.  Other evidence may seem benign, despite being a critical component of the interpretation of digital evidence.