How good are your keywords?
Almost every review I’ve been on lately has involved keyword searches some time prior to the documents being presented for review. The art of finding the correct set of keywords to bring out the most relevant documents for a particular document collection can indeed be a very complex and interesting part of the process.
Or, it can consist of a couple of lawyers (or a lone associate) sitting down in a room trying to dream up what he/she thinks will be the words that will bring out relevant communications from what he/she thinks are the types of things their particular client might say in emails and documents.
Check out this discussion of part of the issue. Craig Ball also discusses part of the review process related to key terms at Grimm Prognosis for ESI Search.
Is your current review well thought out or did someone throw darts at a Thesaurus to get your keyword set together?