Electronic discovery, or eDiscovery, is a process in civil litigation or a government investigation. It is similar to the process of discovery in trials but pertains exclusively to the exchange of electronic information such as emails or computer files.
Any electronic information that is identified as relevant by the attorneys can be placed on legal hold. After screening, the evidence is extracted using digital forensic techniques and is usually converted to a PDF or TIFF file for presentation in court. Preservation of the metadata attached to electronic files is a key part of eDiscovery, as this metadata can indicate dates and locations of file creation or editing.