In this updated edition of the well-established practitioner text, Stephen Mason and Daniel Seng have brought together a team of experts in the field to provide an exhaustive treatment of electronic evidence. This edition continues to follow the tradition in English evidence text books by basing the text on the law of England and Wales, with appropriate citations of relevant case law and legislation from other jurisdictions. It is essential reading for anyone who wants to understand more about the role of electronic evidence in the Post Office scandal, how similar issues can, and have, happened elsewhere and why the law on computer evidence must be changed.