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Electronic Discovery v. Computer Forensics: The Differences You Need to Know

By Mary Mack, Esq.
October 10, 2003

With the rapid growth of electronic discovery, even well-informed lawyers and support teams are often unclear about the differences between computer forensics and electronic discovery. The differing processes of collecting and reviewing electronic data involve varying levels of technological sophistication and data interpretation, and the choices you make about which services to use depend on the matter at hand. While electronic discovery is needed vastly more often than computer forensics, legal teams may use one or both services in particular matters. The following article provides you the practical working knowledge you'll need to determine which discovery approach is best suited for your needs.

What are Electronic Discovery and Computer Forensics?

Electronic discovery is best described as the collection, preparation, review and production of electronic documents from large numbers of hard drives and other storage media. Electronic discovery firms may be called to testify regarding chain of custody of particular collections. Computer forensics is the use of an expert to preserve, analyze and produce data from a single hard drive. It's sometimes referred to as the “autopsy of a computer hard drive,” using specialized software, tools and analysts who often provide expert witness services. So what's the real differentiator between the two services? The main differences relate to the volume of information involved, who touches what type of data, and whether expert reconstruction is required. (See the chart on page 4).

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